INDICATION: Right knee pain, lateral meniscal tear
COMPARISON: None
TECHNIQUE: Axial T2 fat-saturated and proton density fat-saturated; coronal T1
and proton density fat-saturated; and sagittal T2 fat-saturated, proton density
fat-saturated, and gradient echo MRI of the right knee .
CONTRAST: None.
FINDINGS:
ACL and PCL: Intact.
Collateral ligaments and posterior, lateral corner: Intact.
Extensor mechanism: Quadriceps insertion is normal. Minimal tendinopathy
proximal patellar tendon..
Patellofemoral alignment: No patellar subluxation/tilt. Trochlear groove is not
hypoplastic. TT-TG distance: 12 mm
Joint fluid: Small Baker's cyst. No significant joint effusion
Medial meniscus: Intact.
Lateral meniscus: Signal abnormality of the anterior horn extends to the femoral
articular surface. This is unusual site for isolated meniscal tear
Articular cartilage: Intact. No focal osteochondral lesion.
Bone marrow: Within normal limits. No acute fracture, dislocation, or marrow
replacing process.
Soft tissue mass: 11 mm ganglion anterior to the lateral joint line.
IMPRESSION:
1 . A 11 mm ganglion in the Hoffa's fat pad anterior to the lateral joint line
2. Signal abnormality anterior horn lateral meniscus, an unusual site for
isolated meniscal tear