title: Alcock canal syndrome due to obturator internus muscle fibrosis.
abstract: Alcock canal syndrome is a rare entrapment neuropathy of the pudendal nerve. We report a case of perineal neuralgia where pudendal nerve compression was due to fibrosis of the obturator internus muscle following an injury of the muscle. After being misdiagnosed for 2 years, the patient was diagnosed only after a combined neurophysiologic and magnetic resonance imaging (MRI) investigation. This case underlines the importance of performing focused neurophysiologic and neuroimaging studies in patients with neuropathic perineal pain in order to reach a correct diagnosis.
authors.affiliation: Unita' Operativa di Neurofisiopatologia, CTO, Rome, Italy.
authors.forename: Angelo
authors.initials: A
authors.lastname: Insola
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Granata
authors.forename: Luca
authors.initials: L
authors.lastname: Padua
mesh_terms: D004568:Electrodiagnosis; D005260:Female; D005355:Fibrosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000294:innervation / Q000473:pathology*; D009407:Nerve Block; D009408:Nerve Compression Syndromes / Q000209:etiology* / Q000473:pathology / Q000628:therapy; D010146:Pain / Q000188:drug therapy / Q000209:etiology; D010502:Perineum / Q000294:innervation*; D013577:Syndrome; D014057:Tomography, X-Ray Computed