Dermatoscopy in „Atypical“ Locations: Flat Pigmented Lesions on the Acral Parts of the Limbs
Authors:
T. Fikrle; B. Divišová; H. Krausová; K. Pizinger
Authors‘ workplace:
Dermatovenerologická klinika FN a LF UK v Plzni, přednosta prof. MUDr. Karel Pizinger, CSc.
Published in:
Čes-slov Derm, 98, 2023, No. 1, p. 30-33
Category:
Dermatoscopy
Overview
The dermatoscopic picture of flat melanocytic lesions on the palms and soles most often has a parallel linear arrangement. To distinguish melanocytic nevi from thin melanomas, we can use the „ridges and furrows“ rule, which is relatively simple, in most cases. Linear thin pigmentation in the sulci superficiales corresponds to a nevus, while linear broad pigmentation over the cristae superficiales indicates the risk of acral localized melanoma. The size of the examined lesion is also important. In the text, we briefly describe some modifications of the basic dermatoscopic patterns in melanocytic lesions on the palms and soles (lattice, fibrillar, multicomponent type) and their use in differential diagnosis.
Keywords:
melanoma – Feet – dermatoscopy – palms – melanocytic nevus
Sources
1. BRAUN, R. P., THOMAS, L., DUSZA, S. W. et al. Dermoscopy of acral melanoma: a multicenter study on behalf of the international dermoscopy society. Dermatology, 2013, 227(4), p. 373–380.
2. POCK, L., FIKRLE, T., DRLÍK, L., ZLOSKÝ, P. Dermatoskopický atlas. Phlebomedica, spol. s. r. o., 2008, 149 s. ISBN: 978-80-901298-5-6.
3. SAIDA, T., KOGA, H. Dermoscopic patterns of acral melanocytic nevi: their variations, changes, and signifikance. Arch. Dermatol., 2007, 143(11), p. 1423–1426.
4. SAIDA, T., KOGA, H., UHARA, H. J. Key points in dermoscopic differentiation between early acral melanoma and acral nevus. Dermatol., 2011, 38(1), p. 25–34.
5. SAIDA, T., KOGA, H., UHARA, H. Dermoscopy for Acral Melanocytic Lesions: Revision of the 3-step Algorithm and Refined Definition of the Regular and Irregular Fibrillar Pattern. Dermatol Pract Concept., 2022, 12(3), p. e2022123.
6. SAIDA, T., OGUCHI, S., MIYAZAKI, A. Dermoscopy for acral pigmented skin lesions. Clin Dermatol., 2002, 20(3), p. 279–285.
7. TANIOKA, M. Benign acral lesions showing parallel ridge pattern on dermoscopy. J. Dermatol., 2011, 38(1), p. 41–44.
8. BRAUN, R. P., THOMAS, L., DUSZA, S. W. et al. Dermoscopy of acral melanoma: a multicenter study on behalf of the international dermoscopy society. Dermatology, 2013, 227(4), p. 373–380.
9. POCK, L., FIKRLE, T., DRLÍK, L., ZLOSKÝ, P. Dermatoskopický atlas. Phlebomedica, spol. s. r. o., 2008, 149 s. ISBN: 978-80-901298-5-6.
Labels
Dermatology & STDs Paediatric dermatology & STDsArticle was published in
Czech-Slovak Dermatology
2023 Issue 1
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