title: Posterior interosseous nerve palsy. Report of three unusual cases.
abstract: Three unusual cases of posterior interosseous nerve palsy involving an entrapment mechanism are described. The findings in these three cases seem to support the view that PIN entrapment usually results from interaction of exogenous factors (occupation, pregnancy, compression during sleep, etc.) with anatomical anomalies at the level of the supinator brevis muscle.
mesh_terms: D000328:Adult; D004576:Electromyography; D005260:Female; D005542:Forearm / Q000294:innervation*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000175:diagnosis*; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*