Female 49 years old Reason: knee pain, eval for meniscal or chondral injury History: as above. MENISCI: There is a small defect along the undersurface of the inner fibers of the posterior horn of the medial meniscus, indicating a small undersurface tear. Mild increased signal intensity within the posterior horn and body of medial meniscus indicates intrasubstance degeneration. The anterior horn appears normal. There is mild intrasubstance signal within the body of the lateral meniscus indicating degeneration, but we see no discrete tear.ARTICULAR CARTILAGE AND BONE: There is partial-thickness degeneration of the articular cartilage of the medial femoral condyle, above the posterior horn of the medial meniscus. There is also partial thickness degeneration of the articular cartilage of the medial femoral condyle above the anterior horn of the medial meniscus. There is minimal superficial fraying of the articular cartilage of the medial tibial plateau. Mild increased signal intensity of the articular cartilage of the lateral tibial plateau between the meniscal horns is suggestive of mild degeneration. The patellar cartilage appears normal for patient's age.LIGAMENTS: Mild edema type signal along the medial collateral ligament could represent a sprain in the correct clinical context, but the ligament itself appears normal. Lateral collateral ligament complex is intact. The cruciate ligaments are unremarkable. The femoral attachment of the medial patellofemoral ligament is indistinct, but the clinical significance of this is uncertain.EXTENSOR MECHANISM: Extensor mechanism is intact.ADDITIONAL
1.Small undersurface tear of the posterior horn of the medial meniscus.2.Foci of cartilage degeneration as described above.3.Joint effusion and Baker's cyst as described above.