Systemic lupus erythematosus in a patient whose younger sister had allergic granulomatous angitis

A 37-year-old woman visited to our hospital due to general edema. The patient was diagnosed as having systemic lupus erythematosus (SLE) associated with chronic glomerulonephritis, which developed into chronic renal failure and was treated with regular hemodialysis. The patient's younger sister had been followed in our outpatient's clinic because of allergic granulomatous angitis (AGA). The sibling's common histocompatibility leukocyte antigens (HLA) were A24(9), B52(5), and DR2.