Abstract
Exogenous Ochronosis is a rare skin disease. It is usually associated with the topical use of hydroquinone, resulting in a grayish or bluish black hyperpigmentation due to dermal deposition of ocher pigment. There is no gold standard treatment and the therapeutic options are generally not effective. We report a case of a patient with exogenous achronosis after use of Hydroquinone, treated with CO2 Laser and showing very good results
Highlights
Exogenous ochronosis is a rare disease characterized by asymptomatic, bluish-black or grayish hyperpigmentation, typically located on the face, it can involve the neck, dorsum and extensor surfaces. 1.2 It arises more commonly as a side effect of hydroquinone; it may be associated with phenol, mercury, or antimalarial drugs or other medicaments
There is a report of an exogenous ochronosis case following the use of hydroquinone that was treated with CO2 laser with quite satisfactory results
The studied patient has Fitzpatrick’s phototypeV and has undergone prolonged treatment with hydroquinone – the main risk factors described in the literature
Summary
Authors: Catarina Gonçalves da Silva Carvalho[1] Vanessa da Nóbrega Vilela[1] Amanda Eugênia Almeida Rocha[1] Gustavo de Sá Menezes Carvalho[2] Emmanuel Rodrigues de França[3] Aldejane Gurgel de Amorim Rodrigues[4]. Correspondence: Catarina Gonçalves da Silva Carvalho R. Arnóbio Marquês, 310 – Santo Amaro Cep 50100-130 – Recife (PE), Brazil e-mail: catarina.carvalho@yahoo. Com Exogenous ochronosis treated with CO2 Laser Arnóbio Marquês, 310 – Santo Amaro Cep 50100-130 – Recife (PE), Brazil e-mail: catarina.carvalho@yahoo. com Exogenous ochronosis treated with CO2 Laser
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