69-year-old male with acutely painful edematous left knee and personal history of prostate cancer. Evaluate for pathology. MENISCI: There is globular increased signal abnormality within the posterior horn of the medial meniscus which extends to the tibial articular surface consistent with a complex degenerative tear. There is globular signal abnormality within the posterior horn of the lateral meniscus consistent with mucoid degeneration.ARTICULAR CARTILAGE AND BONE: No bone marrow signal abnormality is identified. No pathologic enhancement to suggest metastatic disease. There is articular cartilage degeneration along the medial and lateral facets of the patella. No full-thickness or near full-thickness articular cartilage defects are identified.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact. ADDITIONAL
1. Complex degenerative tearing of the medial meniscus as described above.2. Findings suggestive of a partially ruptured large Baker's cyst.3. No findings to suggest metastatic disease.