Journal of Clinical and Diagnostic Research, ISSN - 0973 - 709X

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Case report
Table of Contents - Year : 2016 | Month : February | Volume : 10 | Issue : 2 | Page : AD03 - AD04

The Extensor Indicis Brevis A Rare Variation and Its Significance AD03-AD04

Rohini Arathala, P.K. Sankaran, Gunapriya Ragunath, Soma Sri Harsha, Tharani Sree Sugumar

Correspondence
Dr. P.K. Sankaran,
18 Pillaiyar Koil St, Thirumazhisai, Chennai - 600124, India.
E-mail: drpks@live.com

Variations in muscle attachments are valuable in interpreting rare clinical conditions. This case report discusses about the abnormal extensor indicis muscle attachment in left hand of male cadaver and its clinical relevance. The extensor indicis muscle was arising from lunate carpal bone and posterior radiocarpal ligament which further continued as short belly and had its distal attachment on the proximal phalanx of the index finger. This muscular variation has been described in earlier studies with 1.0% incidence. Abnormal origin of extensor indicis may be associated with pain and swelling at the back of the hand. This pain may be confused with other clinical conditions like synovial cyst and ganglion. Knowledge of such rare variations are useful to clinicians, surgeons, occupational and physical therapists for planning better surgical decisions.