A 68-year-old male patient presented to our Clinic with unilateral knee pain for a period of 5 months. He was following treatment with NSAID and Omeprazole with no good outcome. We performed an X-ray on the symptomatic knee (Figures 1 and Figure 2) and we observed in the Metaphysis of distal Femur a heavily calcified lesion, well demarcated and evenly distributed throughout. Recent Laboratory tests were unremarkable. We concluded that this lesion could correspond to a Chondroma of distal Femur.....