Extrafacial Lentigo Maligna: A Clinical And Dermoscopic Analysis According to Localization

Extrafacial Lentigo Maligna: A Clinical And Dermoscopic Analysis According to Localization

Authors

  • Gabriel Salerni Dermatology Department, Universidad Nacional de Rosario & Hospital Provincial del Centenario de Rosario, Argentina http://orcid.org/0000-0001-6386-4402
  • Emilia Cohen-Sabban Dermatology Service, Instituto de Investigaciones Médicas Alfredo Lanari, Universidad de Buenos Aires, Argentina
  • Horacio Cabo Dermatology Department, Universidad de Buenos Aires, Argentina

Keywords:

skin cancer, melanoma, lentigo maligna, dermoscopy

Abstract

Introduction: Whether extrafacial lentigo maligna (EFLM) differs clinically and/or dermoscopically according to location has not been analyzed in depth.

Objectives: To evaluate clinical and dermoscopic characteristics regarding different localization in a series of EFLM.

Methods: We conducted a retrospective analysis of clinical and dermoscopic characteristics of 69 histologically proven EFLM retrieved from the database of two private institutions.

Results: Of the 69 EFLM included in the study, 25 (36.2%) were located in posterior trunk (PT), 16 (23.2%) in anterior trunk (AT), 15 (21%) in upper extremities (UE), and 13 (18.8%) in lower extremities (LE). Mean diameter among localization were as follows: 14.3 mm in PT, 11.8 mm in AT, 14 mm in UE, and 10 mm in LE (p 0.44). The most frequent dermoscopic criteria were angulated lines and tan structureless areas (70%), followed by atypical pigment network (60%), both with similar distribution among groups. Angulated lines pattern was the most frequent global pattern, observed in 55% of cases. Tan structureless/granularity pattern and patchy peripheral pigmented islands pattern were seen in 15.6% and 11.6% cases, respectively. No statistically significant differences were observed in the distribution of global dermoscopic pattern in the different localizations.

Conclusions: From the clinical point of view, EFLM did not differ in terms of patient’s age and diameter regarding localization. Upon dermoscopy, we found no significant differences in the overall dermoscopic pattern in the different localizations.

Author Biography

Gabriel Salerni, Dermatology Department, Universidad Nacional de Rosario & Hospital Provincial del Centenario de Rosario, Argentina

Dermatology Department

Universidad Nacional de Rosario & Hospital Provincial del Centenario de Rosario, Argentina

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Published

2022-02-02

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Original Article

How to Cite

1.
Extrafacial Lentigo Maligna: A Clinical And Dermoscopic Analysis According to Localization. Dermatol Pract Concept [Internet]. 2022 Feb. 2 [cited 2024 Apr. 23];12(1):e2022035. Available from: https://dpcj.org/index.php/dpc/article/view/1940

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