An Interesting Case of Acquired Hemophilia A in an Elderly Patient Presenting with Hematuria

A 90-year-old male with a past medical history of hypertension, chronic kidney disease stage II, and hyperlipidemia presented with complaints of intermittent hematuria. He had no prior history of hematuria or mucosal bleeds and denied having any trauma. His activated partial thromboplastin time (aPTT) was found to be mildly prolonged at 48.4 seconds and his factor VIII level was found to be very low at less than 3%.