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- Title
Reflectance confocal microscopy features of acral lentiginous melanoma: a comparative study with acral nevi.
- Authors
Cinotti, E.; Debarbieux, S.; Perrot, J.L.; Labeille, B.; Long ‐ Mira, E.; Habougit, C.; Douchet, C.; Depaepe, L.; Hammami ‐ Ghorbel, H.; Lacour, J.P.; Thomas, L.; Cambazard, F.; Bahadoran, P.
- Abstract
Background Acral lentiginous melanoma ( ALM) can be difficult to differentiate from acral nevus. Reflectance confocal microscopy ( RCM) is widely used for the diagnosis of melanocytic tumours, but the RCM features of ALM and acral nevus have not been described yet. Objective To determine the RCM features of ALM and acral nevus, and their correlation with clinical and histological characteristics. Methods Retrospective study of 17 cases of ALM and 26 acral nevi. Results Pagetoid cells were present in all ALMs with a visible epidermis and in three nevi. A proliferation of atypical melanocytes at the dermal-epidermal junction ( DEJ) and/or in the dermis was visible in nine ALMs but not in nevi. The histopathological examination of initial skin biopsies was unable to diagnose ALM in four cases, differing from RCM that could identify malignant tumour cells by exploring the whole lesions. Conclusion Reflectance confocal microscopy can help in the differentiation of ALM and acral nevus, and to guide the biopsy.
- Subjects
MELANOMA; MELANOCYTES; CONFOCAL microscopy; HISTOPATHOLOGY; SKIN biopsy
- Publication
Journal of the European Academy of Dermatology & Venereology, 2016, Vol 30, Issue 7, p1125
- ISSN
0926-9959
- Publication type
Article
- DOI
10.1111/jdv.13399