The first description of these diseases dates back to 1980, when LeRoy proposed the term "Undifferentiated Connective Tissue Syndromes" (UCTS) to define the early phases of connective tissue ...

There are many patients who are not diagnosed as definite connective tissue disease (CTD). These patients may have an undifferentiated connective tissue disease (UCTD). Objectives The aim of this ...

Given patient’s history of Hashimoto’s thyroiditis and recent diagnosis of TLE, autoimmune workup was pursued with SLE, mixed connective tissue disease and undifferentiated connective-tissue disease ...

spondyloarthritis and undifferentiated connective tissue disease. Eight (12.1%) patients had autoimmune thyroiditis, without known rheumatic diseases associated. The presence of anti-cN1A was also ...