Patient History
27-year-old female complaining of knee pain.
Findings
Menisci:
Medial Meniscus: Slightly truncated inner edge, suggesting previous meniscal trimming. No tear.
Lateral Meniscus: Slightly truncated inner edge, suggesting previous meniscal trimming. No tear.
Ligaments:
Anterior Cruciate Ligament: Status post previous ACL graft repair. A heterogeneous 2.3 x 1.8 x 1.3 cm lesion with mixed T2 hyperintensity and hypointensity is seen anterior to the tibial attachment of the ACL graft, within the intercondylar notch. On T1, the lesion is heterogeneous but predominantly intermediate to low signal. Peripheral susceptibility on the gradient sequence, in keeping with previous post surgical change. Appearances are consistent with a giant cyclops lesion with graft impingement. Tibial and femoral tunnels appear normal.
Posterior Cruciate Ligament: Intact.
Medial Collateral Ligament: Intact.
Lateral Collateral Ligament: Intact.
Poterolateral Corner Structures: Intact.
Posteromedial Corner Structures: Intact.
Extensor Mechanism:
Patellar Tendon: Changes compatible with previous bone-tendon harvesting with diffuse reactive post surgical tendon hypertrophy.
Distal Quadriceps Tendon: Intact.
Medial Patellofemoral Ligament: Intact.
Medial and Lateral Patellar Retinacula: Intact.
Hoffa’s Fat Pad: Unremarkable.
Articulations:
Patellofemoral Compartment: Unremarkable.
Medial Compartment: Mild chondral thinning in the medial compartment.
Lateral Compartment: Unremarkable.
General:
Bones: No tibial or femoral tunnel osteolysis.
Effusion: Small suprapatellar effusion.
Baker’s Cyst: None.
Loose Bodies: None.
Conclusion
1.Giant “Cyclops Lesion” with graft impingement.
2.Status post ACL repair with intact graft.
3.Postsurgical changes of the patellar tendon with moderate reactive tendon hypertrophy.
4.Small joint effusion.
5.No traumatic meniscal tear.
