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Anais Brasileiros de Dermatologia
Print version ISSN 0365-0596On-line version ISSN 1806-4841
ROMERO, Sandra Adolfina Reyes et al. Use of dermoscopy for diagnosis of exogenous ochronosis. An. Bras. Dermatol. [online]. 2011, vol.86, n.4, suppl.1, pp.31-34. ISSN 0365-0596. http://dx.doi.org/10.1590/S0365-05962011000700007.
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
Keywords : Dermoscopy; Ochronosis; Pigmentation disorders.