Degenerative changes of the articular cartilage with thinning and denudation as well as subchondral degenerative change; most evident at the medial tibio-femoral articulation with lateral femoral condyle subchondral 3.5 X 2.7 cm cystic lesion associated with extensive perilesional osseous oedema as well as a similar yet much smaller distal femoral intercondylar subarticular cystic lesion. Osteoarthritic changes with subtle marginal osteophytic lipping of the tibio-femoral and patella-femoral articulations.
Degenerative tear of the posterior horn medial meniscus (PHMM) with an intra-mensical branching signal of increased signal intensity seen reaching the inferior articular surface.
No definite lateral meniscal tear.
Mucoid degeneration of the ACL which appears thickened with increased signal intensity alternating with its normal hypointense fibers.
Intact fibers' continuity with normal MR signal of the posterior cruciate and collateral ligaments as well as the quadriceps tendon and patellar ligament.
Moderate knee joint effusion with synovial thickening and frond-like synovial projections with high T1 signal and intermediate to high T2 signal as well as signal suppression in the FAT-suppression sequences.
A small pes anserinus bursitis is noted. No Baker's cyst.