PMC10152950_01
Clinical measurement of 10 cm long Baker's cyst over posterior aspect of the right knee.
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F1
Clinical examination indicated a prominent painless and unfixed cystic, fluctuant swelling extending around 10 x 7 cm in the popliteal fossa encroaching into the thigh (Fig. 1).
Clinical image showing posterior aspect of both legs with the right calf muscle atrophy.
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F2
The left mid-calf circumference was 33 cm whereas that of the right calf was 30 cm, thus demonstrating atrophy of the right calf (Fig. 2).
Sagittal T2-weighted magnetic resonance imaging of the right knee joint showing multi-septate Baker's cyst.
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F3
A multi septate popliteal cyst of 13.8*6.5*6.8 cm along the medial head of the gastrocnemius was seen in the T2-weighted sagittal image (Fig. 3), and the cyst communicated with the knee joint in the T2-weighted axial view (Figs. 4 and 5).
Curvilinear posterior incision (postoperative wound) extending from distal thigh to proximal tibia over posterior aspect of the right knee.
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F6
The cyst was addressed through the posterior approach with a wide curvilinear incision with blunt dissection between the medial head of the gastrocnemius and semimembranosus muscles (Fig. 6).
Intra-op image showing multi-septate Baker's cyst compressing both peroneal and tibial nerves distal to their origin.
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F7
A massive multi-septate cyst measuring 13*6*6 cm was discovered, spanning from the distal thigh to the proximal tibia and obviously compressing the tibial nerve with outward displacement of the peroneal nerve (Fig. 7).