Onychophosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Onychophosis is a localized or diffuse hyperkeratotic tissue that develops on the lateral or proximal nail folds, within the space between the nail folds and the nail plate. ^[1]

Causes

Common Causes

Onychophosis may involve the subungual area, which is referred to as subungual hyperkeratosis, as a direct result of repeated minor trauma, and most frequently affects the first and fifth toes.^[1]

Epidemiology and Demographics

Age

It is a common finding in the elderly.

References

↑ ^1.0 ^1.1 Odom, Richard B.; Davidsohn, Israel; James, William D.; Henry, John Bernard; Berger, Timothy G.; Clinical diagnosis by laboratory methods; Dirk M. Elston (2006). Andrews’ diseases of the skin: clinical dermatology. Saunders Elsevier. ISBN 0-7216-2921-0.

[isbn0-7216-2921-0-1] 1.0 ^1.1 Odom, Richard B.; Davidsohn, Israel; James, William D.; Henry, John Bernard; Berger, Timothy G.; Clinical diagnosis by laboratory methods; Dirk M. Elston (2006). Andrews’ diseases of the skin: clinical dermatology. Saunders Elsevier. ISBN 0-7216-2921-0.

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