Hereditary Heterozygous C2 Deficiency: Variable Clinical and Serological Manifestations Among Three Sisters.

Abstract excerpt

The causal link between inherited complement deficiencies and systemic lupus erythematosus (SLE) has been well established, although it remains a rare cause of the disease. We present the case of three biological sisters with hereditary heterozygous C2 deficiency, but who differ widely in their clinical and serological manifestations. Patient 1 is 25 years old and was diagnosed with SLE at the age of 12. Further...

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