{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,31]],"date-time":"2026-01-31T04:45:40Z","timestamp":1769834740608,"version":"3.49.0"},"reference-count":10,"publisher":"Mattioli1885","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>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\u00a0describe 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. Conclusion: PBD in phototype IV presents with a distinct dermoscopic pattern, including a higher proportion black and blue colors and fewer vascular structures than observed in lighter phototypes. The most prominent dermoscopic findings were structureless areas and pigmented dots, either in a central or peripheral linear arrangement; however, in a quarter of the cases, no specific clue was observed. These findings emphasize the need for tailored diagnostic approaches and the importance of biopsy when specific dermoscopic features are absent.<\/jats:p>","DOI":"10.5826\/dpc.1601a5750","type":"journal-article","created":{"date-parts":[[2026,1,30]],"date-time":"2026-01-30T15:39:15Z","timestamp":1769787555000},"page":"5750","source":"Crossref","is-referenced-by-count":0,"title":["Dermoscopic Features of Pigmented Bowen Disease in Phototype IV Patients"],"prefix":"10.5826","volume":"16","author":[{"given":"Gabriel","family":"Salerni","sequence":"first","affiliation":[{"name":"Dermatology Department, Universidad Nacional de Rosario & Hospital Provincial del Centenario de Rosario, Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Horacio","family":"Cabo","sequence":"additional","affiliation":[{"name":"Master of Ibero-Latin American Dermatology (CILAD), Universidad de Buenos Aires, Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Emilia","family":"Cohen-Sabban","sequence":"additional","affiliation":[{"name":"Dermatology Service, Instituto de Investigaciones M\u00e9dicas Alfredo Lanari, Universidad de Buenos Aires, Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sonia","family":"Rodriguez-Sa\u00e1","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Hospital El Carmen, Obra Social de Empleados P\u00fablicos (OSEP), Godoy Cruz, Mendoza, Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Flavia Carolina","family":"Pozzobon","sequence":"additional","affiliation":[{"name":"Centro de Diagnostico Dermatol\u00f3gico, Bogot\u00e1, Colombia; Instituto Nacional de Cancerolog\u00eda, Bogot\u00e1, Colombia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristian","family":"Navarrete-Dechent","sequence":"additional","affiliation":[{"name":"Melanoma and Skin Cancer Unit, Escuela de Medicina, Pontificia Universidad Cat\u00f3lica de Chile, Santiago, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ivonne","family":"Arellano-Mendoza","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Dermatooncology, Hospital Dalinde, Ciudad de Mexico, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Virginia Mariana","family":"Gonzalez","sequence":"additional","affiliation":[{"name":"Dermatology Department, Hospital Alem\u00e1n, Buenos Aires, Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renato","family":"Bakos","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Hospital de Cl\u00ednicas de Porto Alegre \u2013 Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nicole","family":"Orendain","sequence":"additional","affiliation":[{"name":"Private practice, Guadalajara, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Malynahi","family":"Tapia-Juarez","sequence":"additional","affiliation":[{"name":"Private practice, Ciudad de Mexico, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luis","family":"Morales Godinez","sequence":"additional","affiliation":[{"name":"Universidad Aut\u00f3noma de M\u00e9xico. Private practice Ciudad de M\u00e9xico, Mexico and Guatemala"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Diana","family":"Guerrero Hern\u00e1ndez","sequence":"additional","affiliation":[{"name":"Hospital General ISSSTE, Tacuba Ciudad de M\u00e9xico, Universidad Nacional Aut\u00f3noma de M\u00e9xico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sofia","family":"Andre","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Hospital Central, Mendoza, Argentina"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Susana","family":"Puig","sequence":"additional","affiliation":[{"name":"Melanoma Unit, Hospital Clinic Barcelona, University of Barcelona, Barcelona, Spain. CIBER de enfermedades raras, Instituto de Salud Carlos III, Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"27750","published-online":{"date-parts":[[2026,1,30]]},"reference":[{"key":"10.5826\/dpc.1601a5750_ref1","doi-asserted-by":"crossref","unstructured":"Vestergaard ME, Macaskill P, Holt PE, Menzies SW. Dermoscopy compared with naked eye examination for the diagnosis of primary melanoma: a meta-analysis of studies performed in a clinical setting. Br J Dermatol. 2008 Sep;159(3):669-76. DOI: 10.1111\/j.1365-2133.2008.08713.x. Epub 2008 Jul 4. PMID: 18616769.","DOI":"10.1111\/j.1365-2133.2008.08713.x"},{"key":"10.5826\/dpc.1601a5750_ref2","doi-asserted-by":"crossref","unstructured":"Kittler H, Pehamberger H, Wolff K, Binder M. Diagnostic accuracy of dermoscopy. Lancet Oncol. 2002 Mar;3(3):159-65. DOI: 10.1016\/s1470-2045(02)00679-4. 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