Knee pain. Malignant neoplasm of the breast. Due to the patient's body habitus, the high-resolution knee coil could not be used. An alternative coil was used instead which results in slightly suboptimal image quality.MENISCI: The menisci appear normal.ARTICULAR CARTILAGE AND BONE: There is perhaps mild superficial degeneration of the articular cartilage along the lateral facet of the patella, but otherwise the articular cartilage appears normal for age. There is a 4 mm rounded focus of low signal intensity within the distal femoral metaphysis surrounded by a thin irregular rim of high signal intensity on the fat-suppressed T2-weighted images. This corresponds to a small sclerotic focus on recent radiographs. It is nonspecific. Bone marrow signal intensity otherwise is unremarkable.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: The extensor mechanism is intact. There is mild signal heterogeneity of the quadriceps fat pad which is of questionable clinical significance.
1.Minimal degeneration of the articular cartilage of the patella.2.Small focus of low signal intensity within the distal femoral metaphysis is nonspecific. While I suspect that it is benign in etiology, given the patient's history of breast cancer, follow-up radiographs are recommended to assess for interval change in size.3.Mild signal heterogeneity of the quadriceps fat pad may reflect chronic inflammation but is of questionable current clinical significance.