I thought this was an interesting experiment and I repeated it with my own DICOM. Results are terrible. Claude has complete opposite diagnosis on my ACL, mensci and cartilage.
Claude: Primary finding: Complete ACL tear with the classic pivot-shift bone bruise signature (posterior lateral femoral condyle + anterior lateral tibial plateau edema) and large hemarthrosis. PCL, MCL, LCL, menisci, and cartilage all intact.
Radiologist: English translation of findings & conclusion: Mild joint effusion. No Baker's cyst. Post-ACL reconstruction with minor cyst formation in both the femoral and tibial bone tunnels. The ACL graft shows heterogeneous signal but no complete or recurrent rupture. PCL and collateral ligaments intact. The lateral meniscus appears abnormal, likely from prior partial meniscectomy, with significant cartilage loss (partly Grade 4) at the posterior lateral compartment, osteophyte formation, and reactive bone marrow edema. The medial meniscus shows diffuse signal change from prior repair but no recurrent tear (specifically no recurrent bucket-handle tear). Mild chondropathy with focal cartilage loss on the lateral side of the medial femoral condyle. Cyclops lesion present. No definite loose bodies.