Digital ganglion cyst
Non-traumatic painful nodule at middle finger base - about 1 -2 wk.
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Anechoic lesion is noted abutting palmer aspect of flexure tendon. It overlies mid shaft of proximal phalanx of finger. Adjacent A2 pully is noted in axial view.
Findings suggest peri A2 pully digital ganglion cyst.
Discomfort or pain is out of proportion to small size of cyst - Typical finding.