17-year-old male with right knee pain. Rule out meniscus and/or ligament injury MENISCI: The medial and lateral meniscus appear intact.ARTICULAR CARTILAGE AND BONE: No full-thickness or near full-thickness articular cartilage defects are identified. Heterogeneous bone marrow signal abnormality likely represents residual islands of red marrow. There is increased signal abnormality within the anterior aspect of the medial tibial plateau which may represent a direct bone contusion.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact. There is a small amount of fluid within the deep infrapatellar bursa.ADDITIONAL
1. No evidence of meniscal or ligamentous injury as clinically questioned. 2. Probable direct bone contusion within the medial tibial plateau. 3. Subcentimeter lobulated foci of fluid signal abnormality along the posterior aspect of the distal fibers of the PCL may represent ganglion formation as described above.