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. 2016 May;1(4):209-12.
doi: 10.1159/000445908. Epub 2016 Apr 22.

Onychomycosis and Onychomatricoma

Penelope Kallis  1 , Antonella Tosti  1
Affiliations

Onychomycosis and Onychomatricoma

Penelope Kallis et al. Skin Appendage Disord. 2016 May.

Abstract

Nail dermoscopy is helpful in the differential diagnosis of nail disorders including onychomycosis and pigmented and nonpigmented nail tumors. We report two cases of onychomatricoma with concurrent onychomycosis of the same digit. In both cases, dermoscopy of the nail plate exhibited features of onychomatricoma, whereas dermoscopy of the distal free edge revealed features of onychomycosis. It is not uncommon for patients with onychomatricoma to develop coexisting onychomycosis, as channels created by the tumor render the nail plate susceptible to invasion by fungi.

Keywords: Nail disorders; Onychomatricoma; Onychomycosis.

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Figures

Fig. 1
Fig. 1
a A brown discolored nail plate. b Frontal view revealing a thickened nail plate. c Nail plate dermoscopy showing homogenous brown discoloration with proximal splinter hemorrhages. d Nail dermoscopy of the distal free edge revealing subungual hyperkeratosis with a ‘ruin appearance’.
Fig. 2
Fig. 2
a Yellow discoloration of the lateral third of the nail plate. b Frontal view revealing yellow discoloration and thickening at the lateral edge of the nail plate. c Nail plate dermoscopy exhibiting longitudinal white lines. d Dermoscopy of the distal free edge of the nail plate yielding subungual hyperkeratosis with ‘ruin appearance’.
See this image and copyright information in PMC

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