It does not mean that a doctor does not know what to call the condition, it just means that some or all of the clinical features traditionally seen in defined connective tissue disease are not present ...

This content was created by our physicians and experts. Mixed connective tissue disease (MCTD) is an autoimmune disease in which the immune system produces antibodies that attack the body's own ...

Arthritis Care Res. 2021;73(1):48-54. [2]Siegel CH, Kleinman J, Barbhaiya M, et al. The psychosocial impact of undifferentiated connective tissue disease on patient health and well-being: A ...