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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Neurosurgery. 2009 Oct;65(4 Suppl):A29–A43. doi: 10.1227/01.NEU.0000351279.78110.00

Figure 13.

Figure 13

Distal pudendal nerve neurographic image anatomy. The pudendal nerve in the Alcock canal (AC) runs along the medial aspect of the obturator internus muscle (OI) medial to the ischial tuberosity (IT). The rectal branch of the nerve (RB) is well seen in most imaging cases (Re = rectum). Figure reproduced with permission from: Filler AG: Diagnosis and management of pudendal nerve entrapment syndromes: impact of MR Neurography and open MR-guided injections. Neurosurgery Quarterly 18:1–6, 2008 (20).