Presentation
Patient with pain and mass on the back of the right knee.
Patient Data
Age: 60 years
Gender: Female
From the case:
Popliteal cyst


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In the lateral projection, a rounded radiopaque image is observed on the posterior side of the knee.
From the case:
Popliteal cyst


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Well-defined cystic image in the popliteal fossa, originating between the semimembranosus tendon and the medial gastrocnemiusus.
Case Discussion
Cystic lesion in the popliteal fossa originating between the semimembranosus tendon and the medial gastrocnemius muscle, consistent with a popliteal cyst (Baker's cyst).