Dermoscopic criteria for differentiating exogenous ochronosis from melasma
نویسندگان
چکیده
منابع مشابه
Dermoscopic and reflectance confocal microscopic features of exogenous ochronosis.
BACKGROUND Exogenous ochronosis presents as an acquired asymptomatic hyperpigmentation on photoexposed areas, predominantly over bony prominences, and is caused by the topical application of several skin-lightening agents. OBSERVATIONS We describe a 63-year-old Hispanic woman who developed exogenous ochronosis lesions on her face after using topical bleaching creams containing hydroquinone, 2...
متن کاملDermoscopic Characteristics of Melasma in Indians: A Cross-sectional Study
Materials and methods: A total of 100 cases of clinically diagnosed melasma and 50 controls without melasma or any other facial pigmentation were studied dermoscopically at a tertiary care center in Eastern India. The various described relevant patterns of pigmentation on dermoscopy were recorded. Similar patterns were also looked for in the control population and the two compared. Statistical ...
متن کاملUse 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 scarce and have presented so far unsatisfactory results. Three cases of exogenous ochronosis on the fa...
متن کاملDermoscopic criteria and melanocytic lesions.
Dermoscopy is a noninvasive, in vivo method for the early diagnosis of malignant melanoma and the differential diagnosis of pigmented lesions of the skin. By allowing visualization of sub-macroscopic pigmented structures that correlate with specific underlying histopathologic structures, dermoscopy provides a more powerful tool than the naked-eye examination for clinicians to determine the need...
متن کاملExogenous ochronosis hydroquinone induced: a report of four cases.
Exogenous ochronosis is an infrequent dermatosis characterized as a dark blue hyperpigmentation localized where the causing agent was applied. It may be caused by the use of systemic medication such as antimalarials and by the use of topic substances such as phenol, resorcinol, benzene, or hydroquinone, which is a fenolic compound with depigmentation action, largely used in the treatment of mel...
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ژورنال
عنوان ژورنال: Indian Journal of Dermatology, Venereology, and Leprology
سال: 2013
ISSN: 0378-6323
DOI: 10.4103/0378-6323.120741