Bleeding manifestations in a patient with amyloidosis

A woman aged 67 years with a history of multiple myeloma who was receiving chemotherapy was admitted to the medical intensive care unit with massive gastrointestinal bleeding. She denied having any family history of bleeding diathesis. Her laboratory studies showed a normal platelet count and coagulation profile, whereas her serum-free lambda light chain level was elevated at 183.25 mg/dL (reference: 0.57–2.63). She underwent gastric endoscopy …