Onychocytic matricoma.
| Autor: | d'Almeida LFV; Center for Nail Research, Instituto de Dermatologia Professor Rubem David Azulay, Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro (RJ), Brazil., Jeunon T; Department of Dermatopathology, Dermatology Service, Hospital Federal de Bonsucesso, Bonsucesso (RJ), Brazil., Leverone AP; Center for Nail Research, Instituto de Dermatologia Professor Rubem David Azulay, Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro (RJ), Brazil., Nakamura R; Center for Nail Research, Instituto de Dermatologia Professor Rubem David Azulay, Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro (RJ), Brazil. |
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| Jazyk: | angličtina |
| Zdroj: | Anais brasileiros de dermatologia [An Bras Dermatol] 2019 Mar-Apr; Vol. 94 (2), pp. 214-216. Date of Electronic Publication: 2019 May 09. |
| DOI: | 10.1590/abd1806-4841.20197865 |
| Abstrakt: | Onychocytic matricoma is a newly described tumor of the nail matrix. Clinically, it presents with localized thickening of the nail plate and melanonychia. Histologically, it represents a benign acanthoma of onychocytes. There are 8 cases reported in the literature. A 12-year-old girl presented with localized melanonychia and concurrent thickening of the nail plate restricted to the area of pigmentation affecting the right thumb, with no history of trauma or pain. We report a case of this rare tumor occurring in late childhood and provide a comprehensive review of its clinical presentation and differential diagnosis. Both clinicians and dermatopathologists should be aware of the presentation of onychocytic matricoma and include it in their scope of diagnosis of longitudinal nail bands. |
| Databáze: | MEDLINE |
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