|What Is Scleroderma?|
DefinitionScleroderma can be classified in terms of the degree and location of the skin involvement. Accordingly, Scleroderma has been categorized into two major groups, localized Scleroderma and systemic sclerosis. Localized Scleroderma affects only certain parts of the body, whilst systemic can affect the whole body. Although there are different ways these groups and subgroups may be broken down or referred to, the following is a common way of classifying these diseases:
Derived from the Greek words “sklerosis,” meaning hardness, and “derma,” meaning skin, Scleroderma literally means hard skin. Although it is often referred to as if it were a single disease, Scleroderma is really a symptom of a group of diseases that involve the abnormal growth of connective tissue, which supports the skin and internal organs.
It is sometimes used, therefore, as an umbrella term for these disorders. In some forms of Scleroderma, hard, tight skin is the extent of this abnormal process. In other forms, however, the problem goes much deeper, affecting blood vessels and internal organs, such as the heart, lungs, and kidneys.
Scleroderma is called both a rheumatic disease and a connective tissue disease. The term rheumatic disease refers to a group of conditions characterized by inflammation or pain in the muscles, joints, or fibrous tissue. A connective tissue disease is one that affects tissues such as skin, tendons, and cartilage.
Scientists and researchers estimate that about 250 people per million have some form of Scleroderma, and its cause is not known. Some evidence has been found that genes are important factors, but the environment seems to also play a role. The fact that genes seem to cause a predisposition to developing Scleroderma means that inheritance at least plays a partial role.
It is not unusual to find other autoimmune diseases in families of Scleroderma patients. Some evidence for the role genes may play in leading to the development of Scleroderma comes from the study of Choctaw Native Americans who are the group with the highest reported prevalence of the disease. The disease is more frequent in females than in males, and isn't considered contagious, but it can greatly affect self-esteem and the ability to accomplish everyday tasks.
Types Of Scleroderma
Localized types of scleroderma are those limited to the skin and related tissues and, in some cases, the muscle below. Internal organs are not affected by localized scleroderma, and localized scleroderma can never progress to the systemic form of the disease. Often, localized conditions improve or go away on their own over time, but the skin changes and damage that occurs when the disease is active can be permanent. For some people, localized scleroderma is serious and disabling.
There are two generally recognized types of localized Scleroderma, Morphea and Linear.
Morphea: comes from a Greek word that means “form” or “structure.” The word refers to local patches of Scleroderma. The first signs of the disease are reddish patches of skin that thicken into firm, oval-shaped areas. The centre of each patch becomes ivory coloured with violet borders. These patches sweat very little and have little hair growth. Patches appear most often on the chest, stomach, and back. Sometimes they appear on the face, arms, and legs.
Morphea can be either localized or generalized. Localized morphea limits itself to one or several patches, ranging in size from a half-inch to 12 inches in diameter. The condition sometimes appears on areas treated by radiation therapy. Some people have both morphea and linear scleroderma (described below). The disease is referred to as generalized morphea when the skin patches become very hard and dark and spread over larger areas of the body. Regardless of the type, morphea generally fades out in 3 to 5 years; however, people are often left with darkened skin patches and, in rare cases, muscle weakness.
Linear Scleroderma: is characterized by a single line or band of thickened or abnormally coloured skin. Usually, the line runs down an arm or leg, but in some people it runs down the forehead. People sometimes use the French term en coup de sabre, or “sword stroke,” to describe this highly visible line.
Also known as Systemic Sclerosis, this is the term for the form of the disease that not only includes the skin, but also involves the tissues beneath, the blood vessels, and the major organs. Systemic sclerosis is typically broken down into limited coetaneous Scleroderma and diffuse coetaneous scleroderma. Some doctors break systemic sclerosis down into a third subset called systemic sclerosis sine scleroderma. This means that patients have other manifestations of Scleroderma but they do not have any overt skin thickening.
Limited Coetaneous Scleroderma: Limited coetaneous scleroderma typically comes on gradually and affects the skin only in certain areas: the fingers, hands, face, lower arms, and legs. Most people with limited disease have Raynaud’s phenomenon for years before skin thickening starts. Telangiectasia and calcinosis often follow. (See definitions below.) Gastrointestinal involvement occurs commonly, and some patients have severe lung problems, even though the skin thickening remains limited. People with limited disease often have all or some of the symptoms that some doctors call CREST, which stands for the following:
People with diffuse disease often are tired, lose appetite and weight, and have joint swelling or pain. Skin changes can cause the skin to swell, appear shiny, and feel tight and itchy.
The damage of diffuse Scleroderma typically occurs over a few years. After the first 3 to 5 years, people with diffuse disease often enter a stable phase lasting for varying lengths of time. During this phase, symptoms subside: joint pain eases, fatigue lessens, and appetite returns. Progressive skin thickening and organ damage decrease.
Gradually, however, the skin may begin to soften, which tends to occur in reverse order of the thickening process: the last areas thickened are the first to begin softening. Some patients’ skin returns to a somewhat normal state, while other patients are left with thin, fragile skin without hair or sweat glands. Serious new damage to the heart, lungs, or kidneys is unlikely to occur, although patients are left with whatever damage they have in specific organs.
People with diffuse scleroderma face the most serious long-term outlook if they develop severe kidney, lung, digestive, or heart problems. Fortunately, less than one-third of patients with diffuse disease develop these severe problems. Early diagnosis and continual and careful monitoring are important.
The symptoms of Scleroderma depend on the type of Scleroderma present and the extent of external and internal involvement in the individual affected. Because scleroderma can affect the skin, oesophagus, blood vessels, kidneys, lungs, blood pressure and bowels, the symptoms it causes can involve many areas of the body.
Scleroderma affects the skin to cause local or widespread signs of inflammation (redness, swelling, tenderness, itching, and pain) that can lead to skin tightness or hardening. These skin changes can be widespread, but it's most common for them to affect the fingers, feet, face, and neck. This can lead to decreased range of motion of the fingers, toes, and jaw. Tiny areas of calcification (calcinosis), while not common, can sometimes be noticed as hard nodules at the tips of the elbows or in the fingers.
Scleroderma affecting the oesophagus leads to heartburn. This is directly a result of stomach acid flowing back up into the oesophagus. Sometimes this can lead to scarring of the oesophagus with difficulty swallowing and/or localized pain in the central chest.
Blood vessels that can be affected include the tiny arterioles of the finger tips, toes, and elsewhere. These vessels can have a tendency to spasm when the areas are exposed to cold, leading to blueness, whiteness, and redness of involved fingers, toes, and sometimes nose or ears. These colour changes are referred to as Raynaud's phenomenon.
Raynaud's phenomenon can cause inadequate supply of oxygen to the involve tips of fingers or toes, causing tiny ulcers or blackened (dead) skin. Sometimes Raynaud's phenomenon is also associated with tingling. Other blood vessels that can be involved in scleroderma are the tiny capillaries of the face, lips, mouth, or fingers. These capillaries widen (dilate) forming tiny, red blanching spots, called telangiectasias. Elevated blood pressure is potentially serious and can lead to kidney damage. Symptoms include headache, fatigue, and in severe cases, stroke.
Inflammation of the lungs in scleroderma can cause scarring, resulting in shortness of breath, especially with physical exertion.
Elevated pressure in the arteries to the lungs (pulmonary hypertension) can also cause shortness of breath and difficulty getting an adequate breath with activity.
Scleroderma affecting the large bowel (colon) most often causes constipation but can also lead to cramping and diarrhoea. When this is severe, it complete stool blockage (faecal impaction) can result.
Causes Of Scleroderma
Although scientists don’t know exactly what causes Scleroderma, they are certain that people cannot catch it from or transmit it to others. Studies of twins suggest it is also not inherited. Scientists suspect that Scleroderma comes from several factors that may include:
Abnormal immune or inflammatory activity: Like many other rheumatic disorders, Scleroderma is believed to be an autoimmune disease. An autoimmune disease is one in which the immune system, for unknown reasons, turns against one’s own body. In Scleroderma, the immune system is thought to stimulate cells called fibroblasts so they produce too much collagen. The collagen forms thick connective tissue that builds up within the skin and internal organs and can interfere with their functioning. Blood vessels and joints can also be affected.
Genetic makeup: Although genes seem to put certain people at risk for Scleroderma and play a role in its course, the disease is not passed from parent to child like some genetic diseases.
Environmental triggers: Research suggests that exposure to some environmental factors may trigger Scleroderma-like disease (which is not actually Scleroderma) in people who are genetically predisposed to it. Suspected triggers include viral infections, certain adhesive and coating materials, and organic solvents such as vinyl chloride or trichloroethylene. But no environmental agent has been shown to cause Scleroderma. In the past, some people believed that silicone breast implants might have been a factor in developing connective tissue diseases such as Scleroderma. But several studies have not shown evidence of a connection.
Hormones: By the middle to late childbearing years (age 30 to 55), women develop scleroderma 7 to 12 times more often than men. Because of female predominance at these and all ages, scientists suspect that hormonal differences between women and men play a part in the disease. However, the role of oestrogen or other female hormones has not been proven.
Who Gets Scleroderma?
Although Scleroderma is more common in women, the disease also occurs in men and children. It affects people of all races and ethnic groups. However, there are some patterns by disease type. For example, localized forms of scleroderma are more common in people of European descent than in African Americans. Morphea usually appears between the ages of 20 and 40, and linear scleroderma usually occurs in children or teenagers.
Systemic Scleroderma, whether limited or diffuse, typically occurs in people from 30 to 50 years old. It affects more women of African American than European descent.
Because Scleroderma can be hard to diagnose and it overlaps with or resembles other diseases, scientists can only estimate how many cases there actually are. Estimates for the number of people in the United States with systemic sclerosis range from 40,000 to 165,000. By contrast, a survey that included all Scleroderma-related disorders, including Raynaud’s phenomenon, suggested a number between 250,000 and 992,500.
For some people, Scleroderma (particularly the localized forms) is fairly mild and resolves with time. But for others, living with the disease and its effects day to day has a significant impact on their quality of life.
Depending on your particular symptoms, a diagnosis of Scleroderma may be made by a general internist, a dermatologist (a doctor who specializes in treating diseases of the skin, hair, and nails), an orthopaedist (a doctor who treats bone and joint disorders), a pulmonologist (a lung specialist), or a rheumatologist (a doctor specializing in treatment of musculoskeletal disorders and rheumatic diseases).
A diagnosis of Scleroderma is based largely on the medical history and findings from the physical exam. To make a diagnosis, your doctor will ask you a lot of questions about what has happened to you over time and about any symptoms you may be experiencing. Are you having a problem with heartburn or swallowing? Are you often tired or achy? Do your hands turn white in response to anxiety or cold temperatures?
Once your doctor has taken a thorough medical history, he or she will perform a physical exam. Finding one or more of the following factors can help the doctor diagnose a certain form of scleroderma:
Diagnosing scleroderma is easiest when a person has typical symptoms and rapid skin thickening. In other cases, a diagnosis may take months, or even years, as the disease unfolds and reveals itself and as the doctor is able to rule out some other potential causes of the symptoms. In some cases, a diagnosis is never made, because the symptoms that prompted the visit to the doctor go away on their own.
Some patients have some symptoms related to scleroderma and may fit into one of the following groups:
Undifferentiated connective tissue disease (UCTD): This is a term for patients who have some signs and symptoms of various related diseases, but not enough symptoms of any one disease to make a definitive diagnosis. In other words, their condition hasn’t “differentiated” into a particular connective tissue disease. In time, UCTD can go in one of three directions: it can change into a systemic disease such as systemic sclerosis, systemic lupus erythematosus, or rheumatoid arthritis; it can remain undifferentiated; or it can improve spontaneously.
Overlap syndromes: This is a disease combination in which patients have symptoms and lab findings characteristic of two or more conditions.
Because Scleroderma can affect many different organs and organ systems, you may have several different doctors involved in your care. Typically, care will be managed by a rheumatologist (a doctor specializing in treatment of musculoskeletal disorders and rheumatic diseases). Your rheumatologist may refer you to other specialists, depending on the specific problems you are having. For example, you may see a dermatologist for the treatment of skin symptoms, a nephrologist for kidney complications, a cardiologist for heart complications, a gastroenterologist for problems of the digestive tract, and a pulmonary specialist for lung involvement.
In addition to doctors, professionals such as nurse practitioners, physician assistants, physical or occupational therapists, psychologists, and social workers may play a role in your care. Dentists, orthodontists, and even speech therapists can treat oral complications that arise from thickening of tissues in and around the mouth and on the face.
Currently, there is no treatment that controls or stops the underlying problem – the overproduction of collagen – in all forms of Scleroderma. Thus, treatment and management focus on relieving symptoms and limiting damage. Your treatment will depend on the particular problems you are having. Some treatments will be prescribed or given by your doctor. There are other things that you could do on your own however, such as lifestyle and dietary changes, and the addition of dietary supplements, which make living the with disease much easier.
Complications With Scleroderma
Raynaud’s phenomenon: More than 90 percent of people with Scleroderma have this condition, in which the fingers and sometimes other extremities change colour in response to cold temperature or anxiety. For many, Raynaud’s phenomenon precedes other manifestations of the disease. In other people, however, Raynaud’s phenomenon is unrelated to scleroderma, but may signal damage to the blood vessels supplying the hands arising from occupational injuries (from using jackhammers, for example), trauma, excessive smoking, circulatory problems, drug use, or exposure to toxic substances. For some people, cold fingers and toes are the extent of the problem and are little more than a nuisance. For others, the condition can worsen and lead to puffy fingers, finger ulcers, and other complications that require aggressive treatment.
If you have Raynaud’s phenomenon, the following measures may make you more comfortable and help prevent problems:
Stiff, painful joints: In diffuse systemic sclerosis, hand joints can stiffen due to hardened skin around the joints or inflammation within them. Other joints can also become stiff and swollen.
Skin problems: When too much collagen builds up in the skin, it crowds out sweat and oil glands, causing the skin to become dry and stiff. If your skin is affected, try the following:
Dry mouth and dental problems: Dental problems are common in people with Scleroderma for a number of reasons. Tightening facial skin can make the mouth opening smaller and narrower, which makes it hard to care for teeth; dry mouth due to salivary gland damage speeds up tooth decay; and damage to connective tissues in the mouth can lead to loose teeth. You can avoid tooth and gum problems in several ways:
Gastrointestinal (GI) problems: Systemic sclerosis can affect any part of the digestive system. As a result, you may experience problems such as heartburn, difficulty swallowing, early satiety (the feeling of being full after you’ve barely started eating), or intestinal complaints such as diarrhoea, constipation, and gas. In cases where the intestines are damaged, your body may have difficulty absorbing nutrients from food. Although GI problems are diverse, here are some things that might help at least some of the problems you have:
Lung damage: Virtually all people with systemic sclerosis have some loss of lung function. Some develop severe lung disease, which comes in two forms: pulmonary fibrosis (hardening or scarring of lung tissue because of excess collagen) and pulmonary hypertension (high blood pressure in the artery that carries blood from the heart to the lungs). Treatment for the two conditions is different:
Heart problems: Common among people with Scleroderma, heart problems include scarring and weakening of the heart (cardiomyopathy), inflamed heart muscle (myocarditis), and abnormal heartbeat (arrhythmia). All of these problems can be treated. Treatment ranges from drugs to surgery and varies depending on the nature of the condition.
Kidney problems: Renal crisis occurs in about 10 percent of all patients with Scleroderma, primarily those with early diffuse scleroderma. Renal crisis results in severe uncontrolled high blood pressure, which can quickly lead to kidney failure. It’s very important that you take measures to identify and treat the hypertension as soon as it occurs. These are things you can do:
Cosmetic problems: Even if Scleroderma doesn’t cause any lasting physical disability, its effects on the skin’s appearance – particularly on the face – can take their toll on your self-esteem. Fortunately, there are procedures to correct some of the cosmetic problems scleroderma causes:
Living Daily With Scleroderma
Having a chronic disease can affect almost every aspect of your life, from family relationships to holding a job. For people with Scleroderma, there may be other concerns about appearance or even the ability to dress, bathe, or handle the most basic daily tasks. Here are some areas in which scleroderma could intrude.
Appearance and self-esteem: Aside from the initial concerns about health and longevity, people with Scleroderma quickly become concerned with how the disease will affect their appearance. Thick, hardened skin can be difficult to accept, particularly on the face. Systemic scleroderma may result in facial changes that eventually cause the opening to the mouth to become smaller and the upper lip to virtually disappear. Linear Scleroderma may leave its mark on the forehead. Although these problems can’t always be prevented, their effects may be minimized with proper treatment. Also, special cosmetics – and in some cases plastic surgery – can help conceal scleroderma’s damage.
Caring for yourself: Tight, hard connective tissue in the hands can make it difficult to do what were once simple tasks, such as brushing your teeth and hair, pouring a cup of coffee, using a knife and fork, unlocking a door, or buttoning a jacket. If you have trouble using your hands, consult an occupational therapist, who can recommend new ways of doing things or devices to make tasks easier. Devices as simple as Velcro fasteners and built-up brush handles can help you be more independent.
Family relationships: Spouses, children, parents, and siblings may have trouble understanding why you don’t have the energy to keep house, drive to soccer practice, prepare meals, or hold a job the way you used to. If your condition isn’t that visible, they may even suggest you are just being lazy. On the other hand, they may be overly concerned and eager to help you, not allowing you to do the things you are able to do or giving up their own interests and activities to be with you. It’s important to learn as much about your form of the disease as you can and to share any information you have with your family. Involving them in counselling or a support group may also help them better understand the disease and how they can help you.
Sexual relations: Sexual relationships can be affected when systemic scleroderma enters the picture. For men, the disease’s effects on the blood vessels can lead to problems achieving an erection. For women, damage to the moisture-producing glands can cause vaginal dryness that makes intercourse painful. People of either sex may find they have difficulty moving the way they once did. They may be self-conscious about their appearance or afraid that their sexual partner will no longer find them attractive. With communication between partners, good medical care, and perhaps counselling, many of these changes can be overcome or at least worked around.
Pregnancy and childbearing: In the past, women with systemic scleroderma were often advised not to have children. But thanks to better medical treatments and a better understanding of the disease itself, that advice is changing. (Pregnancy, for example, is not likely to be a problem for women with localized scleroderma.) Although blood vessel involvement in the placenta may cause babies of women with systemic scleroderma to be born early, many women with the disease can have safe pregnancies and healthy babies if they follow some precautions.
One of the most important pieces of advice is to wait a few years after the disease starts before attempting a pregnancy. During the first 3 years, you are at the highest risk of developing severe problems of the heart, lungs, or kidneys that could be harmful to you and your unborn baby.
If you haven’t developed severe organ problems within 3 years of the disease’s onset, your chances of such problems are less and pregnancy would be safer. But it is important to have both your disease and your pregnancy monitored regularly. You’ll probably need to stay in close touch with both the doctor you typically see for your scleroderma and an obstetrician who is experienced in guiding high-risk pregnancies.
Health & Medical Care
Although your doctors direct your treatment, you are the one who must take your medicine regularly, follow your doctor’s advice, and report any problems promptly. In other words, the relationship between you and your doctors is a partnership, and you are the most important partner. Here’s what you can do to make the most of this important role.
Get educated: Knowledge is your best defence against this disease. Learn as much as you can about Scleroderma, both for your own benefit and to educate the people in your support network.
Seek support: Recruit family members, friends, and co-workers to build a support network. This network will help you get through difficult times: when you are in pain; when you feel angry, sad, or afraid; or when you’re depressed. Also, look for a Scleroderma support group in your community by calling a national scleroderma organization. If you can’t find a support group, you might want to consider organizing one.
Assemble a health care team: You and your doctors will lead the team. Other members may include physical and occupational therapists, a psychologist or social worker, a dentist, and a pharmacist.
Be patient: Understand that a final diagnosis can be difficult and may take a long time. Find a doctor with experience treating people with systemic and localized scleroderma. Then, even if you don’t yet have a specific diagnosis, you will get understanding and the right treatment for your symptoms.
Speak up: When you have problems or notice changes in your condition, don’t feel too self-conscious to speak up during your appointment or even call your doctor or another member of your health care team. No problem is too small to ask about, and early treatment for any problem can make the disease more manageable.
Don’t accept depression: Although it’s understandable that a person with a chronic illness such as Scleroderma would become depressed, don’t accept depression as a normal consequence of your condition. If depression makes it hard for you to function well, don’t hesitate to ask your health care team for help. You may benefit from speaking with a psychologist or social worker or from using one of the effective medications on the market.
Learn coping skills: Meditation, calming exercises, and relaxation techniques may help you cope with emotional difficulties and relieve pain and fatigue. Ask a member of your health care team to teach you these skills or to refer you to someone who can.
Ask the experts: If you have problems doing daily activities, from brushing your hair and teeth to driving your car, consult an occupational or physical therapist. They have more helpful hints and devices than you can probably imagine. Social workers can often help resolve financial and insurance matters.
Research & Development
No one can say for sure when – or if – a cure will be found. But research is providing the next best thing: better ways to treat symptoms, prevent organ damage, and improve the quality of life for people with Scleroderma. In the past two decades, multidisciplinary research has also provided new clues for understanding the disease, which is an important step toward prevention and cure.
Leading the way in funding for this research is the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), a part of the U.S. Department of Health and Human Services’ National Institutes of Health (NIH). Other sources of funding for Scleroderma research include pharmaceutical companies and organizations such as the Scleroderma Foundation, the Scleroderma Research Foundation, and the Arthritis Foundation.
Scientists at universities and medical centers throughout the United States conduct much of this research. Studies of the immune system, genetics, cell biology, and molecular biology have helped reveal the causes of Scleroderma, improve existing treatment, and create entirely new treatment approaches. Some recent advances in the understanding or treatment of Scleroderma include the following:
Other studies are examining the following:
Scleroderma research continues to advance as scientists and doctors learn more about how the disease develops and its underlying mechanisms. NIAMS funds a research center specializing in scleroderma at the University of Texas Health Science Center at Houston. Scientists there are conducting laboratory and clinical research on the disease with the goal of translating basic science findings quickly into improved treatment and patient care.
Glossary Of Terms
Antibodies – special proteins produced by the body’s immune system. They recognize and help fight infectious agents, such as bacteria and other foreign substances that invade the body. The presence of certain antibodies in the blood can help to diagnose some diseases, including some forms of scleroderma.
Atherosclerosis – abnormal fatty deposits in the inner layers of large or medium-sized arteries, which can lead to hardening and narrowing of the arteries and blockages of the blood supply, especially to the heat.
Autoimmune disease – a disease in which the body’s immune system turns against and damages its own tissues.
Calcinosis – the formation of calcium deposits in the connective tissues, which can be detected by x ray. These deposits are typically found on the fingers, hands, face, and trunk and on the skin above elbows and knees. When the deposits break through the skin, painful ulcers can result.
Calcium channel blockers – medicines that lower blood pressure, relieve chest pain, and stabilize normal heart rhythms by inhibiting calcium movement into the heart muscles and smooth muscle cells. They are used to treat a variety of conditions and to prevent circulatory and kidney problems in scleroderma.
Collagen – a fabric-like material of fibrous threads that is a key component of the body’s connective tissues. In scleroderma, either too much collagen is produced or it is produced in the wrong places, causing stiff and inflamed skin, blood vessels, and internal organs.
Connective tissue – tissues such as skin, tendons, and cartilage that support and hold body parts together. The chief component of connective tissue is collagen.
CREST syndrome – an acronym for a collection of symptoms that occur to some degree in all people with systemic sclerosis. The symptoms are calcinosis, Raynaud’s phenomenon, esophageal dysfunction, sclerodactyly, and telangiectasia. Because of the predominance of CREST symptoms in people with limited systemic sclerosis, some people use the term CREST syndrome when referring to that form of the disease.
Eosinophilic fasciitis – a scleroderma-like disorder (often considered to be a localized form of scleroderma) featuring inflammation of the fascia (the thin, sheet-like connective tissues surrounding the muscles and other body structures) and an abnormally high number of a specific kind of white blood cells (eosinophils). The result of the inflammation may be fibrous buildup in the skin of arms and legs, contractures, and carpal tunnel syndrome.
Esophageal dysfunction – impaired function of the esophagus (the tube connecting the throat and the stomach) that occurs when smooth muscles in the esophagus lose normal movement. In the upper and lower esophagus, the result can be swallowing difficulties. In the lower esophagus, the result can be chronic heartburn or inflammation.
Fibroblast – a type of cell in connective tissue that secretes proteins, including collagen.
Fibrosis – a condition marked by increased fibrous tissue that develops between the cells of various organs or tissues. It is a common feature of scleroderma and some other diseases. Fibrosis causes hardening or stiffening of tissues in the skin, joints, and internal organs.
Graft-versus-host disease – a major complication of bone marrow transplantations and sometimes blood transfusions in which white blood cells called lymphocytes, which are found in the marrow or blood, attack tissues in the body into which they were transplanted.
Pulmonary fibrosis – hardening or scarring of lung tissue because of excess collagen. Pulmonary fibrosis occurs in a small percentage of people with systemic sclerosis.
Pulmonary hypertension – abnormally high blood pressure in the arteries supplying the lungs that may be caused by a number of factors, including damage from fibrosis.
Raynaud’s phenomenon – a condition in which the small blood vessels of the hands or feet contract in response to cold or anxiety. As the vessels contract, the hands or feet turn white and cold, then blue. As blood flow returns, they become red. Fingertip tissues may suffer damage, leading to ulcers, scars, or gangrene.
Rheumatic – an adjective used to describe a group of conditions characterized by inflammation or pain in the muscles, joints, and fibrous tissue. Rheumatic diseases or disorders can be related to autoimmunity or other causes.
Sclerodactyly – thick and tight skin on the fingers, resulting from deposits of excess collagen within skin layers. The condition makes it harder to bend or straighten the fingers. The skin may also appear shiny and darkened, with hair loss.
Systemic condition – a condition involving the body as a whole, as opposed to limited conditions that affect particular parts of the body.
Systemic lupus erythematosus – a systemic rheumatic disease that occurs predominantly in women and is characterized by autoimmune activity, a facial rash across the bridge of the nose and cheeks, Raynaud’s phenomenon, joint pain and swelling, fever, chest pain, hair loss, and other symptoms. Many of its symptoms overlap with those of Scleroderma.
Telangiectasia – a condition caused by the swelling of tiny blood vessels, in which small red spots appear on the hands and face. Although not painful, these red spots can create cosmetic problems.
Coyle, W. (1998), "A Brief History of Scleroderma", Scleroderma News, 1988, Vol. 8, No. 2. Accessed via http://www.scleroderma.org/medical/other_articles/Coyle_2001_4.shtm
John Hopkins Medicine (2009), "What is Scleroderma?". Accessed via http://scleroderma.jhmi.edu/about-scleroderma/
National Institute of Arthritis and Musculoskeletal and Skin Diseases (2006), "Scleroderma". Accessed via http://www.niams.nih.gov/Health_Info/Scleroderma/default.asp#5
Mayoclinic.com (2009), "Scleroderma". Accessed via http://www.mayoclinic.com/health/scleroderma/DS00362
Scleroderma Foundation (2009), "What Is Scleroderma". Accessed via http://www.scleroderma.org/medical/overview.shtm
Shiel, W.C. (2008), "Scleroderma", Medicinenet.com. Accessed via http://www.medicinenet.com/scleroderma/article.htm
Teitel, A. (2009), "Scleroderma", MedicinePlus. Accessed via http://www.nlm.nih.gov/medlineplus/ency/article/000429.htm
Thyme & Season, Natural Food Market (2006), "Scleroderma". Accessed via http://www.thymeandseasonnaturalmarket.com/common/adam/DisplayMonograph.asp?storeID=DCE69EEC5CDD4BD2A2230060582C9796&DocID=33_000147
University Of Maryland Medical Centre (2008), "Scleroderma - Symptoms and Complications". Accessed via http://www.umm.edu/patiented/articles/what_symptoms_of_scleroderma_000088_2.htm