Anterior cruciate ligament ganglion cyst (intercondylar notch cyst)
Diagnosis almost certain
Presentation
Knee pain and swelling with limited movement of 3 weeks duration
Patient Data
Age: 30 years
Gender: Male
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A well defined oval-shaped cyst is seen related to the femoral insertion of anterior cruciate ligament (ACL) and displays bright signal on T2 and STIR images.
Mild joint effusion is noted.
The anterior and posterior cruciate ligaments and menisci are intact.
Case Discussion
Differential considerations of a cyst around the knee include popliteal (Baker) cyst, meniscal cyst, ganglion cyst, cyst within tibial tunnel after ACL reconstruction and joint effusion.
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