Year 2018, Volume 12, Issue 3, Pages 152 - 154 2018-12-31

A rare muscle variation – accessory piriformis muscle

Albert Gradev [1] , Lina Malinova [2] , Lazar Jelev [3]

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During routine anatomical dissection of the right lower limb of a 68-year-old male cadaver, a rare muscle variation was revealed and identified as an accessory piriformis muscle. This variant muscle started from the anterior surface of the sacrum below the usual piriformis muscle and extended in a well-identifiable lateral tendon also inserting to the greater trochanter of the femur. In the case described, the accessory piriformis pierced through the proximal part of the sciatic nerve. The length of the additional small muscle was 85 mm with the broadest part of the muscle belly as 9 mm. The course of the variant muscle, especially its tendinous part, might irritate the sciatic nerve and cause piriformis syndrome and other sciatica-like symptoms. The neurologists who diagnose piriformis syndrome and surgeons performing nerve releasing surgery should be well aware of the described rare muscle variation. 


nerve compression syndrome; piriformis muscle; sciatic nerve; variation
  • Clemente CD. Anatomy of the human body. 30th ed. Philadelphia (PA): Lea and Febiger; 1985. pp. 565–71.
Primary Language en
Subjects Health Care Sciences and Services
Journal Section Case Reports
Authors

Author: Albert Gradev (Primary Author)

Author: Lina Malinova

Author: Lazar Jelev (Primary Author)

Dates

Publication Date: December 31, 2018

Bibtex @case report { anatomy558230, journal = {Anatomy}, issn = {1307-8798}, eissn = {1308-8459}, address = {Turkish Society of Anatomy and Clinical Anatomy (TSACA)}, year = {2018}, volume = {12}, pages = {152 - 154}, doi = {}, title = {A rare muscle variation – accessory piriformis muscle}, key = {cite}, author = {Gradev, Albert and Malinova, Lina and Jelev, Lazar} }
APA Gradev, A , Malinova, L , Jelev, L . (2018). A rare muscle variation – accessory piriformis muscle. Anatomy, 12 (3), 152-154. Retrieved from http://dergipark.org.tr/anatomy/issue/44861/558230
MLA Gradev, A , Malinova, L , Jelev, L . "A rare muscle variation – accessory piriformis muscle". Anatomy 12 (2018): 152-154 <http://dergipark.org.tr/anatomy/issue/44861/558230>
Chicago Gradev, A , Malinova, L , Jelev, L . "A rare muscle variation – accessory piriformis muscle". Anatomy 12 (2018): 152-154
RIS TY - JOUR T1 - A rare muscle variation – accessory piriformis muscle AU - Albert Gradev , Lina Malinova , Lazar Jelev Y1 - 2018 PY - 2018 N1 - DO - T2 - Anatomy JF - Journal JO - JOR SP - 152 EP - 154 VL - 12 IS - 3 SN - 1307-8798-1308-8459 M3 - UR - Y2 - 2018 ER -
EndNote %0 Anatomy A rare muscle variation – accessory piriformis muscle %A Albert Gradev , Lina Malinova , Lazar Jelev %T A rare muscle variation – accessory piriformis muscle %D 2018 %J Anatomy %P 1307-8798-1308-8459 %V 12 %N 3 %R %U
ISNAD Gradev, Albert , Malinova, Lina , Jelev, Lazar . "A rare muscle variation – accessory piriformis muscle". Anatomy 12 / 3 (December 2019): 152-154.
AMA Gradev A , Malinova L , Jelev L . A rare muscle variation – accessory piriformis muscle. Anat. 2018; 12(3): 152-154.
Vancouver Gradev A , Malinova L , Jelev L . A rare muscle variation – accessory piriformis muscle. Anatomy. 2018; 12(3): 154-152.