Unusual Case of Extensor Indicis Attachment: Cadaveric Observation and Clinical Relevance

Cureus 2026 Open access

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Authors: Donovan B Turpin, Garrett T. Folds, Caleb T Lee, Alexandra G Nolen, Andrew Schwartz, Adegbenro Omotuyi John Fakoya, Hosne Ara
DOI: 10.7759/cureus.103781
Cited by: 1
References: 8

Abstract

Variations in anatomical structure present challenges to patients as well as medical professionals. In reference to patients, it could affect their lifestyle in terms of function. As for the medical professionals, treatments such as surgery could be made more difficult. Knowing the rare variations leads to better medical care and patient satisfaction and prevents unexpected complications. We discuss the extensor indicis (EI) muscle and the extensor indicis brevis (EIB), an anatomical variation we found while dissecting. The EIB had an irregular origin and insertion. We will further discuss and explore the implications of the variation.

Fields of Study & Subjects

Peripheral Nerve Disorders Myofascial pain diagnosis and treatment Shoulder Injury and Treatment

Publication details

Journal / source
Cureus
Publisher
Springer Science and Business Media LLC
Volume
18
Issue
2
Pages
e103781–e103781
Publication date
17 February 2026
Language
EN