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Intermuscular lipoma of the gluteus muscles compressing the sciatic nerve: an inverted sciatic hernia

2012; American Association of Neurological Surgeons; Volume: 117; Issue: 4 Linguagem: Inglês

10.3171/2012.7.jns111714

1933-0693

Eudaldo M. López‐Tomassetti Fernández, Juan Ramón Hernández Hernández, José Ceballos Esparragón, Angel Turegano García, Valentín Núñez Jorge,

Numerical methods in engineering

The authors report the case of a 50-year-old woman with a benign intermuscular lipoma of the gluteus compressing the sciatic nerve in its course through the sciatic notch. This benign soft-tissue tumor extended into the pelvis, displacing the rectum laterally. Resection was necessary to alleviate symptoms and prevent irreversible damage of the nerve. Wide exposure of the piriformis muscle and sciatic nerve via a transgluteal approach allowed safe lesion removal, and thus avoiding a laparotomy to resect the intrapelvic extension of the tumor. This report features a curious case of soft-tissue tumor growth across the sciatic foramen forming an inverted sciatic hernia. The authors' proposed approach was simple and safe and avoided a laparotomy.