Coagulopathy and spontaneous hemorrhage in a patient with nephrotic syndrome.

Patients with nephrotic syndrome, particularly those with membranous nephropathy tend to be in a hypercoagulable state and often present with thromboembolic phenomena. The association of nephrotic syndrome with a bleeding diathesis however is much less common and the etiologies less well recognized. We report a patient who presented with coagulopathy and recurrent spontaneous hemorrhage in association with nephrotic syndrome. The case highlights key diagnostic and therapeutic challenges and strategies: 1) work up to establish a unifying etiology for both nephrotic syndrome and the bleeding disorder; 2) decision making to obtain a tissue biopsy, select the site of biopsy and understand the relative yields for each site; 3) recognizing the risk and managing peri-procedural bleeding; and 5) developing a treatment strategy with the lowest risk of possible complications. Our patient underwent a kidney biopsy without any complications and a definitive diagnosis of AL amyloidosis was reached. He was treated with anti-plasma cell chemotherapy followed by autologous stem cell transplant with resultant complete hematologic response, improved coagulation parameters, and no further bleeding.