30-year-old male with right knee pain and swelling, concern for re-tear of the medial meniscus. MENISCI: There is linear signal abnormality within the posterior horn and body of the medial meniscus which extends from the tibial articular surface through the peripheral fibers of the meniscus, with formation of small peripheral intrameniscal and parameniscal cysts. The anterior horn of the medial meniscus is intact. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: The articular cartilage is intact, and the bone marrow signal is normal.LIGAMENTS: The anterior cruciate and posterior cruciate ligaments as well as the medial collateral ligament and lateral collateral ligament complex are intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
Signal abnormality within the medial meniscus extending from the tibial articular surface through the peripheral fibers. This represents a tear, although comparison with prior outside imaging will ensure that the signal abnormality was not previously present.