Osteoarthritis of both knee

Case contributed by Mohammad Osama Hussein Yonso
Diagnosis certain


Pain in the left knee for 5 months on examination: tenderness at the medial aspect of the knee no knee effusion no redness or hotness painful terminal range of motion

Patient Data

Age: 45 years
Gender: Male

Bilateral osteoarthritis changes more clear on the left knee, seen as narrowed patellofemoral and medial tibiofemoral joint compartments, fine marginal osteophytes, and prominent tibial spines.

A sessile bony protrusion is seen in the distal posterior aspect of the left femur, consistent with exostosis.

Case Discussion

Exostosis is a benign bony lesion mostly asymptomatic and is discovered by chance.

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