| Dermatoscopy of flat pigmented facial lesions: diagnostic challenge between pigmented actinic keratosis and lentigo maligna. | |
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MedLine Citation:
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PMID: 21083845 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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BACKGROUND: The similarity between clinical pictures of pigmented actinic keratosis (PAK) and lentigo maligna (LM) is well known. OBJECTIVES: To investigate the frequency of dermatoscopic findings suggestive of LM/lentigo maligna melanoma (LMM) in the other facial pigmented skin lesions (FPSL) and to assess the distinguishing dermoscopic criteria of PAK and LM. METHODS: Eighty-nine FPSL were evaluated with conventional dermatoscopy. The lesions showing one or more dermatoscopic features considered as specific patterns for the diagnosis of LM/LMM, mainly slate-grey to black dots and globules, slate-grey areas, annular-granular pattern, asymmetrical pigmented follicular openings, black blotches, rhomboidal structures, hyperpigmented rim of follicular openings, slate-grey streaks and dark streaks, were included in the study selectively. RESULTS: PAK was diagnosed in 67, LM or LMM in 20 and lichen planus-like keratosis in two lesions, histopathologically. Eleven essential dermatoscopic features were observed in facial PAK: slate-grey dots (70%); annular-granular pattern (39%); rhomboidal structures (36%); pseudonetwork (36%); black globules (34%); slate-grey globules (33%); black dots (30%); asymmetrical pigmented follicular openings (25%); hyperpigmented rim of follicular openings (21%); slate-grey areas (18%); and streaks (3%). CONCLUSIONS: PAK has a striking similarity to LM/LMM in clinical and dermatoscopic features, thus representing a diagnostic challange. All dermatoscopic findings except black blotches were observed in PAK. As dermatoscopic diagnosis of a pigmented skin lesion cannot be based on the presence of a single criterion, we may conclude that histopathology still remains the gold standard for correct diagnosis. |
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Authors:
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B N Akay; P Kocyigit; A O Heper; C Erdem |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The British journal of dermatology Volume: 163 ISSN: 1365-2133 ISO Abbreviation: Br. J. Dermatol. Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-11-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0004041 Medline TA: Br J Dermatol Country: England |
Other Details:
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Languages: eng Pagination: 1212-7 Citation Subset: IM |
Copyright Information:
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© 2010 The Authors. BJD © 2010 British Association of Dermatologists. |
Affiliation:
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Departments of Dermatology Pathology, University of Ankara School of Medicine, Samanpazari 06100, Ankara, Turkey. nisaakay15@yahoo.com |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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