An 85-year-old woman suffered a fall, as a result of which she fractured her left neck of femur and was admitted to the orthopedic ward. PMH : Since her medical history included hypertension and chronic renal impairment, her team knew that low-molecular-weight heparin (LMWH, e.g., enoxaparin) should be avoided. Hence, heparin was used postoperatively to prevent thrombus formation. Four days later, the patient complained of nosebleeding that did not seem to be stopping.

Investigation Blood count at admission: White blood cells: 9.9 x 10 9 /L Hemoglobin: 12.8 g/dL Platelets: 350 x 10 9 /L Repeat count after the nosebleed: White blood cells: 10.2 x 10 9 /L Hemoglobin: 11.8 g/dL Platelets: 90 x 10 9 /L   What is your diagnosis for this woman? *This case is from the Editorial Team of Docplexus and is meant for educational purposes only. ( The answer is posted in the comment section below!)