RESUMO
BACKGROUND: Melanomas on chronically sun-damaged skin (CSDS) can be difficult to identify and often manifest morphologic features that overlap with benign lesions. OBJECTIVE: We describe and analyze the clinical and dermoscopic characteristics of melanomas on nonfacial CSDS. METHODS: Melanoma cases on nonfacial CSDS were retrospectively identified from the biopsy specimen logs of 6 melanoma clinics. Clinical and dermoscopic images were combined into 1 database. Demographics, clinical, dermoscopic, and histopathologic information were analyzed. Descriptive frequencies were calculated. RESULTS: One hundred eighty-six cases met the inclusion criteria: 142 melanomas in situ (76%) and 39 invasive (21%; mean thickness, 0.49 mm). Lentigo maligna was the most common histopathologic subtype (n = 76; 40.9%). The most frequent dermoscopic structures were granularity (n = 126; 67.7%) and angulated lines (n = 82; 44%). Vascular structures were more frequent in invasive melanomas (56% vs 12% of in situ melanomas). Most manifested 1 of 3 dermoscopic patterns: patchy peripheral pigmented islands, angulated lines, and tan structureless with granularity pattern. LIMITATIONS: This was a retrospective study, and evaluators were not blinded to the diagnosis. In addition, interobserver concordance and sensitivity and specificity for dermoscopic structures were not evaluated. CONCLUSION: Outlier lesions manifesting dermoscopic structures, such as granularity, angulated lines, or vessels and any of the 3 described dermoscopic patterns should raise suspicion for melanoma.
Assuntos
Dermoscopia/métodos , Sarda Melanótica de Hutchinson/patologia , Melanoma/patologia , Neoplasias Cutâneas/patologia , Luz Solar/efeitos adversos , Adulto , Distribuição por Idade , Idoso , Austrália/epidemiologia , Estudos de Coortes , Detecção Precoce de Câncer/métodos , Feminino , Humanos , Sarda Melanótica de Hutchinson/epidemiologia , Sarda Melanótica de Hutchinson/etiologia , Incidência , Masculino , Melanoma/epidemiologia , Melanoma/etiologia , Pessoa de Meia-Idade , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Medição de Risco , Distribuição por Sexo , Neoplasias Cutâneas/epidemiologia , Neoplasias Cutâneas/etiologia , Raios Ultravioleta/efeitos adversosRESUMO
Se presenta un caso problema con melanoma en cara de más de 3 años de evolución en una paciente de sexo femenino, de 77 años, con antecedentes de exposición solar, rayos X y fentipo de alto riesgo. Se propone y realiza tratamiento quirúrgico adecuado, racionalizando medios y resultado estético.
It is propouse a simple and clasic method to solve a Hutchinson melanoma on the face. Any furthers are disscused and how to do.