8th September 2020

A 23-year-old man is referred to haematology clinic

A 23-year-old man is referred to haematology clinic. He has been suffering from severe pain in his hips and knees for the past year; he describes episodes in which they become acutely painful for days at a time, before resolving. Initial investigations show normocytic anaemia. He is not certain of his family history but tells you that he recalls his uncle who lives in Uganda having suffered from painful joints before he died several years ago.

For the case above, please select the SINGLE most likely diagnosis, based on the clinical information described. Select ONE option from the list above.