Pain. Check for ACL rupture and MCL tear. Possible lateral collateral ligament or meniscal tear as well as following patient falling down multiple stairs 5 days ago. Positive Lachman, varu and valgus stress tests. MENISCI: The lateral meniscus appears intact, however a discrete questionably complex star like tear is observed in the posterior medial meniscal horn extending to the inferior articular surface (image 19 series 601). Further characterization is difficult, specifically due to motion on the coronal projections.ARTICULAR CARTILAGE AND BONE: Diffuse marrow signal largely involving the medial tibial plateau representing a suspected contusion. Diffuse cartilaginous structures are intact without focal defectsLIGAMENTS: The LCL demonstrates intact fibers with questionable partial tearing of the short component given incomplete visualization. No surrounding soft tissue inflammation is also observed. The MCL is torn near its origin proximally with abnormal central fluid suggesting a longitudinal like tear. Similar surrounding soft tissue inflammation and surrounding minimal fluid.The PCL appears intact along with the patellar tendon however the ACL is not completely visualized and without contact discrete fibers. Suspected partial tearing with minimal retraction. Associated questionable small cyst at its insertion adjacent to the tibia.EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
ACL, MCL tearing with questionable more moderate changes in the LCL. Additional tear of the posterior medial meniscal horn; see detail provided