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A bifid piriformis muscle with dual insertion
1Department of Anatomy, American University of Beirut.
Summary
A rare anatomical variation, the bifid piriformis muscle, is detailed. An aberrant fascicle inserted into the trochanteric fossa, with the sciatic nerve splitting around it.
Area of Science:
- Anatomy
- Musculoskeletal System
Background:
- The piriformis muscle plays a role in hip external rotation.
- Anatomical variations can impact neurovascular structures.