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Article
July 1946

LEUKONYCHIA STRIATA SEMILUNARIS

Arch Derm Syphilol. 1946;54(1):60-61. doi:10.1001/archderm.1946.01510360064008
Abstract

Ungual achromia is met with in spots or striae either transverse or longitudinal, and sometimes it covers the whole ungual surface.

Spotted and striated leukonychias are common, being characterized by white spots or striae on the nail. Total leukonychia is rare according to Eller and Anderson.1 In Pardo-Castello's2 book three more cases are mentioned, 1 reported by Fox,3 1 by Stubenbord and Stubenbord4 and the third by Pardo-Castello himself.

Both partial and total leukonychia may be the result of a diffusion of the lunula. According to Pardo-Castello2 diffusion of the lunula is common in leprosy and in other dystrophic conditions of the extremities. Greco5 cited a case in which diffusion of the lunula took place in consequence of therapeutic applications to the ungual matrix. Referring to total leukonychia, Eller and Anderson1 attributed it to a functional disturbance of the nail matrix producing

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