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Polydactyly, rudimentaryQ69.9

Author:Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Synonym(s)

accessory finger; Finger accessory; Finger more rudimentary; Fingerrudiment; vestigial finger

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DefinitionThis section has been translated automatically.

Minus variant of a polydactyly in the form of a skin-coloured, congenital nodule, usually located ulnarly at the base of the little finger. Due to its histological richness in nerve fibres, the disease is sometimes also attributed to true cutaneous neuroma.

LocalizationThis section has been translated automatically.

Base or middle of the base phalanx of the little finger, usually on both sides.

Clinical featuresThis section has been translated automatically.

Tumour the size of a pea or bean, own papillary ridge pattern, sometimes surplus nails.

HistologyThis section has been translated automatically.

Numerous nerve fibres, tactile corpuscles, sometimes cartilage tissue.

Differential diagnosisThis section has been translated automatically.

Digital infantile fibromatosis; juvenile xanthogranuloma; dermatofibroma; neurom.

Authors

Last updated on: 29.10.2020

Author: Prof. Dr. med. Peter Altmeyer