- The obturator foramen is formed by the continuity of the pubic and ischial bones.
- It is covered by the obturator membrane except in its anterior-superior aspect, where it is perforated by the obturator artery, vein, and nerve.
- The neurovascular bundle then travels along a 2- to 3-cm oblique tunnel formed by the internal and external obturator muscles, the so-called obturator canal.
- It has been suggested that the female predominance of these hernias is the result of pregnancy, which leads to relaxation of the pelvic peritoneum and a widen and more horizontal obturator canal.
 Imaging Findings
Patient #1: CT images demonstrate a left obturator hernia
 See Also
 External Links
- Keogan, MT, Paulson, EK. Gastrointestinal case of the day. Obturator hernia causing small bowel obstruction. Am. J. Roentgenol. 1995 165: 192-193