Classically, the following diseases belong to this group:
- SLE (systemic lupus erythematosus)
- Sjögren's syndrome
- Mixed connective tissue disease
The detection of specific autoantibodies, the so-called antinuclear antibodies (ANA), may support the diagnosis of autoimmune connective tissue diseases, and help in differential diagnosis as well as in prognosis.
Immunodiagnostics offers a variety of tests to support the diagnosis of connective tissue diseases.