Use of dermoscopy for diagnosis of exogenous ochronosis

Exogenous ochronosis consists of chronic hyperpigmentation of areas previously treated with topical agents such as hydroquinone, resorcinol, antimalarials and phenol. Early diagnosis allows to promptly suspend the causative agent and it is imperative since the available therapeutic options are scarc...

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Published inAnais brasileiros de dermatología Vol. 86; no. 4 Suppl 1; pp. S31 - S34
Main Authors Romero, Sandra Adolfina Reyes, Pereira, Priscilla Maria Rodrigues, Mariano, Adriana Valkiria de Oliveira, Francesconi, Fábio, Francesconi, Valeska Albuquerque
Format Journal Article
LanguageEnglish
Portuguese
Published Brazil 01.07.2011
Subjects
Adult
Dermatologic Agents - adverse effects
Dermoscopy
Facial Dermatoses - chemically induced
Facial Dermatoses - diagnosis
Female
Humans
Hydroquinones - adverse effects
Hyperpigmentation - diagnosis
Middle Aged
Ochronosis - chemically induced
Ochronosis - diagnosis
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Summary:Exogenous ochronosis consists of chronic hyperpigmentation of areas previously treated with topical agents such as hydroquinone, resorcinol, antimalarials and phenol. Early diagnosis allows to promptly suspend the causative agent and it is imperative since the available therapeutic options are scarce and have presented so far unsatisfactory results. Three cases of exogenous ochronosis on the face which were diagnosed with the use of dermoscopy are presented. Dermatoscopy showed blackish-gray amorphous structures, some obliterating the follicular openings. Histopathological examination confirmed the diagnosis.
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ISSN:1806-4841
DOI:10.1590/s0365-05962011000700007