Aplicação da dermatoscopia no auxílio diagnóstico da ocronose exógena / Use of dermoscopy for diagnosis of exogenous ochronosis
An. bras. dermatol
; 86(4,supl.1): 31-34, jul,-ago. 2011. ilus
Article
in Portuguese
| LILACS
| ID: lil-604114
Responsible library:
BR1.1
RESUMO
A ocronose exógena consiste em hiperpigmentação crônica de áreas previamente tratadas com agentes tópicos como a hidroquinona, a resorcina, os antimaláricos e o fenol. O diagnóstico precoce permite suspender prontamente o agente causador, uma vez que as opções terapêuticas disponíveis são escassas e com resultados insatisfatórios. Reportam-se três casos de ocronose exógena na face, diagnosticados pela dermatoscopia. O estudo dermatoscópico evidenciou estruturas amorfas de coloração cinza-enegrecido, algumas obliterando as aberturas foliculares. O exame histopatológico corroborou o diagnóstico.
ABSTRACT
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.
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Dermoscopy
/
Dermatologic Agents
/
Facial Dermatoses
/
Hydroquinones
/
Ochronosis
Type of study:
Diagnostic study
/
Screening study
Limits:
Adult
/
Female
/
Humans
Language:
Portuguese
Journal:
An. bras. dermatol
Journal subject:
Dermatology
Year:
2011
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal do Amazonas/BR
/
Universidade do Estado do Amazonas/BR