Unusual Type of Hand Preaxial Polydactyly

Nayak, Satheesha B (2018) Unusual Type of Hand Preaxial Polydactyly. Journal of Morphological Sciences, 35 (3). pp. 170-172. ISSN 2177-0298

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Preaxial polydactyly is a common congenital anomaly of the hand. In this anomaly, an additional digit is seen along the preaxial border of the thumb. Several possible types of preaxial polydactyly have been observed and categorized into several types based on the level of duplications. In the present case, we report an unusual type of polydactyly in an approximately 55year-old male cadaver of South Indian origin. An additional nonfunctional digit was noted along the preaxial border of the thumb, at the level of the base of the distal phalanx. Upon careful dissection of the anomalous digit, a thick cord of connective tissue formed by the fibrous flexor sheath around the flexor pollicis longus tendon was noted in its central core. This cordwas surrounded by amass of fatty tissue. The skeletal, muscle and tendon components were found to be absent in the additional digit.

Item Type: Article
Uncontrolled Keywords: Radial polydactyly; Congenital anomalies; Cadaver; Hand
Subjects: Medicine > MMMC Manipal > Anatomy
Depositing User: KMC Library
Date Deposited: 30 Nov 2018 09:05
Last Modified: 30 Nov 2018 09:05
URI: http://eprints.manipal.edu/id/eprint/152371

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