Sciatic hernia clinically mimicking obturator hernia, missed by ultrasonography: case report.

Sciatic hernia is a rare pelvic floor hernia that occurs through the greater or lesser sciatic foramen. Sciatic hernias often present as pelvic pain, particularly in women, and diagnosis can be difficult. Sciatic hernia is one of the rarest forms of internal hernia, which can present as signs and symptoms of small bowel obstruction, swelling in the respective gluteal region or pelvic pain. Transabdominal and transgluteal operative approaches, including laparoscopic repair, have been reported. We present a case of left-sided sciatic hernia with incarcerated small bowel as its contents. The hernia was missed by ultrasonography and plain abdominal radiography, but the clinical features were suggestive of an obturator hernia.