PMC3292825_01
Magnetic resonance imaging results. (A, B) T2-weighted fat-suppressed magnetic resonance image showing origination of the multicystic lesion (arrow) from the Scaphotrapezial joint (A; arrow head) and expansion to the distal forearm beyond the wrist (B).
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F1
Magnetic resonance imaging revealed that the multi-cystic lesion originated from the Scaphotrapezial joint and had expanded beyond the wrist (Figure 1).
Intraoperative view of the distal forearm showing (A) the median nerve (arrow head) compressed by the large ovoid cyst (arrow) and (B) the large ovoid cyst expanded to the volar of the forearm passing between the flexor carpi radialis (*) and flexor digitorum superficialis (*).
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F2
Exploration of the left median nerve showed that it was compressed by a large ovoid cystic lesion at the distal forearm near the proximal end of the carpal tunnel (Figure 2).