Obturator entrapment neuropathy
Weakness of hip adductors with painless full range of movement.
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Cystic lesion at the obturator canal.
Denervation oedema and mild atrophy involving the obturator externus and adductor brevis muscle.
Ganglion cyst in the obturator canal, compressing on the obturator nerve, resulting in denervation oedema and atrophy of the obturator externus, adductor minimus and brevis muscles. Obturator neuropathy is relatively uncommon and often seen in the setting of pelvis trauma and surgery. May also be associated with a hernia or sports injury.
- 1. MR Imaging of Entrapment Neuropathies of the Lower Extremity Catherine N. Petchprapa, Zehava Sadka Rosenberg, Luca Maria Sconfienza, Conrado Furtado A. Cavalcanti, Renata La Rocca Vieira, and Jonathan S. Zember RadioGraphics 2010 30:4, 983-1000