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OSWALDO G. COSTA, M.D.

Arch Derm Syphilol. 1946;54(1):60-61.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

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 . . . [Full Text PDF of this Article]

Author Affiliations
BELLO HORIZONTE, BRAZIL Extramural Teacher, Clinic of Skin Diseases and Syphilis, Faculty of Medicine, University of Minas Geraes

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