SD World is a list dedicated to providing a place where those who suffer from Scleroderma and other autoimmune problems may gather in a warm, friendly forum for an upbeat, open and free exchange of thoughts, ideas and information. We also offer a section of links for scleroderma medical, support, health or fun information.

The internet is a big place. There is a lot of information out there. Some are very, very good, and some are very, very bad. On this and the linked categorized pages are some web sites we have found useful.

Undifferentiated Connective Tissue Disease (UCTD)

Undifferentiated Connective Tissue Disease has symptoms of several connective tissue disorders but not quite enough to be called that disorder. The patient may have also have overlap of some well–established disorders, such as rheumatoid arthritis and scleroderma.

Sclero.org: Mixed Connective Tissue Disease (MCTD) Mixed Connective Tissue Disease is an overlap of clinical features of systemic lupus erythematosus, systemic sclerosis, and polymyositis, along with very high ribonucleoprotein autoantibodies, but without antibodies for other specific autoimmune diseases.

Undifferentiated Connective Tissue Disease Many connective tissue diseases share common signs and symptoms, which frequently makes the diagnosis of a specific rheumatic disease difficult.

Mixed Connective Tissue Disease page Has links to other UCTD sites.

MCTD vs. UCTD (Mixed Connective Tissue Disease vs. Undifferentiated Connective Tissue Disease) Connective tissue diseases are a special group of rheumatic diseases (diseases that feature abnormalities of the muscles and/or joints) that can be associated with arthritis. The cause(s) for the connective tissue diseases is (are) unknown.