Hereditary multiple exostosis complicated by popliteal artery pseudo-aneurysm and common peroneal nerve palsy

We describe a rare case of a twenty-five-year old male patient with a history of hereditary multiple exostoses who presented with a right popliteal fossa swelling and right foot drop following a mild trauma. The swelling proved to be a popliteal artery pseudo-aneurysm complicating a femoral osteochondroma. The management and surgical treatment are discussed