Left knee mass MENISCI: The medial and lateral menisci are intact.ARTICULAR CARTILAGE AND BONE: There is thinning and degeneration of the articular cartilage of the medial femoral condyle anteriorly. There is moderate thinning of the articular cartilage of the lateral compartments as well. Extensive cartilage loss of the patellofemoral compartment is noted particularly along the lateral patellar facet and there is associated underlying reactive marrow changes.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. Articular cartilage degeneration and loss further detailed above which predominantly involves the patellofemoral compartment.2. Partial visualization of complex collection within the posterior compartment of the knee which is better evaluated on dedicated MRI of the leg from the same day.