Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
Dr. Charles "Pat" Davis, MD, PhD, is a board certified Emergency Medicine doctor who currently practices as a consultant and staff member for hospitals. He has a PhD in Microbiology (UT at Austin), and the MD (Univ. Texas Medical Branch, Galveston). He is a Clinical Professor (retired) in the Division of Emergency Medicine, UT Health Science Center at San Antonio, and has been the Chief of Emergency Medicine at UT Medical Branch and at UTHSCSA with over 250 publications.
Scleroderma is a disease of the connective tissue featuring skin thickening, that can involve scarring, blood vessel problems, varying degrees of inflammation, and is associated with an overactive immune system.
Scleroderma is classified as localized or widespread (systemic sclerosis with a tendency to affect internal organs). Systemic sclerosis is further divided into limited and diffuse based upon the extent of skin involvement.
CREST syndrome is a limited form of systemic sclerosis.
Patients with scleroderma can have specific antibodies (ANA, anticentromere or antitopoisomerase) in their blood which suggest autoimmunity.
Treatment of scleroderma is primarily directed toward the particular individual's symptoms.
Scleroderma is an autoimmune disease of the connective tissue featuring skin thickening, spontaneous scarring, blood vessel disease, and varying degrees of inflammation, associated with an overactive immune system. Autoimmune diseases are illnesses that occur when the body's tissues are attacked by its own immune system. Scleroderma is characterized by the formation of scar tissue (fibrosis) in the skin and, potentially, the organs of the body. This leads to thickness and firmness of involved skin.
Scleroderma is classified as localized or widespread (systemic sclerosis with a tendency to affect internal organs). Systemic sclerosis is further divided into limited and diffuse based upon the extent of skin involvement.
What causes scleroderma?
The cause of scleroderma is not known. Researchers have found some evidence that certain genes are important hereditary factors, but the environment seems to also play a role. The result is activation of the immune system in a susceptible individual, causing damage to the inner lining of tiny blood vessels and injury to tissues that result in scar tissue formation and the accumulation of excess collagen.
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.
Reviewed by Charles Patrick Davis, MD, PhD on 3/6/2013
A limited form of scleroderma, a disease of connective tissue that involves the formation of scar tissue (fibrosis) in the skin and sometimes also in other organs of the body. 'CREST' is an acronym for Calcinosis (the formation of tiny deposits of calcium in the skin), Raynaud's phenomenon (spasm of the tiny artery vessels that supply blood to the fingers, toes, nose, tongue, or ears), Esophagial dysmotility (esophageal involvement by the scleroderma), Sclerodactyly (localized thickening and tightness of the skin of the fingers or toes), and Telangiectasias (dilated capillaries that form tiny red areas, frequently on the face and hands and in the mouth, behind the lips).
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