Hereditary afibrinogenemia and pulmonary-renal hydralazine-induced vasculitis.

Combined pulmonary-renal hydralazine-induced vasculitis is rare, and hereditary afibrinogenemia is also rare. We present a case of a 62-year-old man with a history of hereditary afibrinogenemia who presented with hemoptysis and hematuria. Although he had prior episodes of hemoptysis that resolved with repletion of fibrinogen levels, a hydralazine-induced vasculitis was the ultimate cause of his recurrent hemoptysis and hematuria. Hydralazine was held and after transfusion with cryoprecipitate, he was treated with prednisone and rituximab.