Atypical autoimmune polyglandular syndrome type 3 overlapped by chronic HCV infection resulting in carcinogenesis and fatal infection.

The case of a woman with insulin-dependent diabetes mellitus, autoimmune thyroiditis, atrophic gastritis, pernicious anemia, and immunologic thrombocytopenic purpura consisting of autoimmune polyglandular syndrome type 3 associated with a history of gonadal failure is reported. Hepatitis C viral infection added xerophthalmia, lymphocytic sialadenitis, and exacerbation of idiopathic thrombocytopenic purpura. This unique disease constellation was complicated with splenic marginal zone lymphoma and gastric carcinoids. A lung infection, initially treated on an outpatient basis, proved fatal to the patient.