Gabriel Salerni, Horacio Cabo, Emilia N. Cohen-Sabban, Sonia Rodríguez-Saa, Flavia Carolina Pozzobon, Cristian Navarrete-Dechent, Ivonne Arellano-Mendoza, Virginia M. González, Renato Marchiori Bakos, Nicole Orendain, Malynahi Tapia-Juarez, Luis Morales Godinez, Diana Guerrero Hernández, Sofía Andre, Susana Puig
ABSTRACT
Introduction: Research on the dermoscopic features of pigmented Bowen disease (pBD) in individuals with phototype IV skin is limited and consists primarily of case reports or small studies.
Objectives: We sought to describe the clinical and dermoscopic characteristics of 21 cases of pBD in a skin phototype IV population.
Methods: We conducted a multicenter retrospective analysis of 21 histopathologically confirmed cases of pBD under the auspices of the Dermoscopy Chapter of the Ibero-Latin American College of Dermatology (CILAD).
Results: A total of 21 pBD cases in phototype IV patients (57% male, mean age 63.1 years) were analyzed. Lesions were most frequently located on the upper extremities and head and neck area (29% and 24%, respectively) and exhibited brown (90.5%) and pink (90.5%) coloration, with a higher prevalence of gray, black, and blue compared to lighter phototypes. Structureless areas (90.5%) and pigmented dots in a linear arrangement (71.4%) were the most frequent dermoscopic findings. Non-specific dermoscopic findings were observed in 23.8% (N=5) of cases.
