论文信息 - Agenesis of the piriformis muscle: A case report with review of literature

Agenesis of the piriformis muscle: A case report with review of literature

Agenesis of the piriformis muscle is an extremely rare occurrence. Knowledge about this anatomic variant is important because of its close proximity with the sciatic nerve and sacral plexus. The piriformis muscle also serves as an important anatomic landmark for image-guided intervention and hip surgery. We report a case of piriformis muscle agenesis in a 28-year-old woman, incidentally detected on magnetic resonance imaging of the lumbosacral spine and pelvis, performed for low back pain.

V. Ojili | P. Nepal | S. I. Alam | Sadia Sajid | Syeda S Intakhab

[1] M. Varacallo,et al. Anatomy, Bony Pelvis and Lower Limb, Piriformis Muscle , 2019 .

[2] L. Seeger,et al. A Rare Anatomical Variant of Unilateral Piriformis Muscle Agenesis: A Case Report , 2019, Cureus.

[3] E. Brenner,et al. Case report: absence of the right piriformis muscle in a woman , 2019, Surgical and Radiologic Anatomy.

[4] M. İkidağ. Ectopic appendix vermiformis located in the right deep gluteal region due to unilateral piriformis agenesis , 2018, Surgical and Radiologic Anatomy.

[5] Anitha Sen,et al. Accessory piriformis muscle: an easily identifiable cause of piriformis syndrome on magnetic resonance imaging. , 2011, Neurology India.

[6] Z. Rosenberg,et al. MR imaging of entrapment neuropathies of the lower extremity. Part 1. The pelvis and hip. , 2010, Radiographics : a review publication of the Radiological Society of North America, Inc.

[7] N. Smoll. Variations of the piriformis and sciatic nerve with clinical consequence: A review , 2010, Clinical anatomy.

[8] B. Wood,et al. Comparative anatomy of the lower limb muscles of hominoids: attachments, relative weights, innervation, functional morphology and evolution , 2012 .