4th March 2024

You are reviewing an 18-year-old male in the haematology clinic. He attends the clinic frequently

You are reviewing an 18-year-old male in the haematology clinic. He attends the clinic frequently for his underlying condition. He reports frequent bruises during infancy and childhood, with large haematomas forming on minimal injury. He has also had three episodes of haemarthrosis previously in his knee and elbows without any trauma. His blood tests previously have shown a normal platelet count and prothrombin time but an elevated aPTT that corrects on mixing.

Which of the following is likely his underlying diagnosis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.