41-year-old female patient with left knee pain. MENISCI: There is a full thickness radial tear of the posterior horn of the medial meniscus near its root. There is globular signal intensity in the body of the medial meniscus likely representing intrasubstance degeneration with fraying of the inner edge. The anterior horn is intact. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: The superior aspect of the median eminence of the patella is devoid of articular cartilage with a near full-thickness cartilage cleft noted inferiorly. Osteoarthritis affecting the medial compartment particularly along the posterior aspect of the medial femoral condyle appears similar to the prior study, although, there appears to be new mild edema in the medial tibial plateau. There are small osteophytes.LIGAMENTS: The cruciate ligaments are intact. There is edema along the medial collateral ligament; while this could represent a sprain in the appropriate clinical context, it may reflect underlying medial compartment pathology.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1. Limited study as described above.2. Radial tear of the posterior horn of the medial meniscus.3. Osteoarthritis and loose bodies in the joint as described above.4. Other findings as described above.