Why would further assessment be prudent?
Although this patient's pain is most likely due to degenerative changes of the knee joint, pain related to an osteochondroma can indicate malignant degeneration.
What are the two basic shapes of these lesions?
Sessile (broad-based) lesions and lesions with a stalk.
A large posteromedial bony projection is demonstrated involving the distal one quarter of the femoral shaft. It is continuous with the medullary cavity and has an irregular medial margin without large soft tissue component or fracture. Severe narrowing of the medial and patellofemoral joint compartments and marginal osteophyte formations indicate degenerative disease of the knee.