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Dermoscopic Observation (dermoscopic + observation)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Regression of Atypical Nevus: An Anecdotal Dermoscopic Observation

DERMATOLOGIC SURGERY, Issue 10 2006
MARIA A PIZZICHETTA MD
BACKGROUND Clark nevi (atypical melanocytic nevi) can be considered as risk markers and potential precursors of melanoma. The authors report on the morphologic changes of an atypical nevus by dermoscopic follow-up examination over a 7-year period. CASE REPORT A 43-year-old man had a brown macule on his back, sized 5 mm, with an irregular shape, clinically and dermoscopically diagnosed as an equivocal melanocytic lesion. Dermoscopically during the initial examination, a predominant reticular pattern with peripheral eccentric hyperpigmentation in the lower portion of the lesion could be seen. After 7 months, the area of peripheral eccentric hyperpigmentation had regressed, and after 4.5 years the atypical pigment network had almost disappeared. After 7 years of follow-up, a diffuse area of hypopigmentation and a residual light brown pigmentation were detectable. The histopathologic diagnosis was consistent with an atypical junctional nevus with regression with features of a Clark nevus. CONCLUSION Based on our observation, even a dermoscopically atypical nevus may undergo regression as documented by long-term dermoscopic follow-up. [source]

Dermoscopic observation of Bowen's disease

JOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY & VENEREOLOGY, Issue 5 2004
L Bugatti
ABSTRACT Background, In the literature no specific dermoscopic criteria have been described for the diagnosis of Bowen's disease (BD). Objective/aim, To assess the morphological findings of BD seen under dermoscopic observation. Methods, Clinical and dermoscopic images of 14 patients affected by BD with various amount of pigmentation were obtained by means of Heine Dermaphot. Dermoscopic images were analysed by experienced observers applying the modified pattern analysis. Results, The most frequently occurring dermoscopic features were found to be: multicomponent pattern (100%); atypical vascular structures (86.6%); absence of pigmented network (64.3%) or presence of pseudo-network (35.7%); irregular diffuse pigmentation or blotches of pigment (64.2%); irregularly distributed dots and globules (64.2%); focal/multifocal hypopigmentation (78.5%), scaly surface (64.2%) and haemorrages (26.6%). Conclusions, Dermoscopically, BD is mainly characterized by a multicomponent global pattern associated with a prominent vascular pattern (mainly dotted vessels) and a scaly surface. Although no specific dermoscopic criteria can be given for BD, epiluminescence can be a valuable aid in the diagnosis of such a mimicker lesion. [source]

One-year follow-up of a lentigo maligna: first dermoscopic signs of growth

BRITISH JOURNAL OF DERMATOLOGY, Issue 5 2004
R. Schiffner
Summary We report a 64-year-old man with a pigmented lesion on his forehead, initially thought to be actinic lentigo. At follow-up 1 year later the lesion had increased in size and showed new areas of pigmentation. Dermoscopic observation and biopsy led to a diagnosis of lentigo maligna and the lesion was excised. The dermoscopic features indicative of early growth of lentigo maligna are identified and discussed. [source]