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Aberrant accessory abductor digiti minimi manus muscle: a rare anatomical variation
Affiliations- Department of Anatomy, School of Medicine, National and Kapodistrian University of Athens, Greece
- Department of Anatomy, Medical School, Aristotle University of Thessaloniki, Greece
open access
Abstract
The hypothenar muscle with the greatest frequency of variations is the abductor digiti minimi manus. Except for morphological variations of this muscle, have also been reported cases of an extra wrist muscle, the accessory abductor digiti minimi manus muscle. This case report presents a rare case of an accessory abductor digiti minimi muscle characterized by an unusual origin from the tendons of the flexor digitorum superficialis. This anatomical variation was identified on a formalin — fixed male cadaver of Greek origin during routine dissection. This anatomical variation, which may result in Guyon’s canal syndrome or complicate common wrist and hand surgical procedures such as the carpal tunnel release, should be known to orthopaedic surgeons and hand surgeons in particular.
Abstract
The hypothenar muscle with the greatest frequency of variations is the abductor digiti minimi manus. Except for morphological variations of this muscle, have also been reported cases of an extra wrist muscle, the accessory abductor digiti minimi manus muscle. This case report presents a rare case of an accessory abductor digiti minimi muscle characterized by an unusual origin from the tendons of the flexor digitorum superficialis. This anatomical variation was identified on a formalin — fixed male cadaver of Greek origin during routine dissection. This anatomical variation, which may result in Guyon’s canal syndrome or complicate common wrist and hand surgical procedures such as the carpal tunnel release, should be known to orthopaedic surgeons and hand surgeons in particular.
Keywords
wrist muscles, hypothenar muscles variations, abductor digiti minimi
About this articleTitle
Aberrant accessory abductor digiti minimi manus muscle: a rare anatomical variation
Journal
Issue
Vol 83, No 1 (2024): Folia Morphologica
Article type
Case report
Pages
221-225
Published online
2023-02-16
Page views
472
Article views/downloads
438
DOI
Pubmed
Bibliographic record
Folia Morphol 2024;83(1):221-225.
Keywords
wrist muscles
hypothenar muscles variations
abductor digiti minimi
Authors
Ioannis Antonopoulos
Georgios Tsikouris
Dimosthenis Chrysikos
Irene Asouhidou
George Paraskevas
Theodore Troupis
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