Abstract
INTRODUCTION: Seborrheic keratosis (SK) has the typical pigmented dermoscopy features such as fissures and ridges, fat fingers, and cerebriform patterns. Here we describe a case where pigmented columns (PC) were visualized on SK’s dermoscopy associated with a squamous cell carcinoma (SCC). Case presentation: We report a case of a lesion whose dermoscopy showed PC. Histopathological report showed well-differentiated SCC and associated SK. Discussion: The PC was visualized in an area of dendritic melanocytes in the epidermis, correlating with the pigmented SK component of the lesion. To our knowledge, this is the first time PC is described in SK´s dermoscopy.
Highlights
Seborrheic keratosis (SK) has the typical pigmented dermoscopy features such as fissures and ridges, fat fingers, and cerebriform patterns
DISCUSSÃO Em relação às estruturas dermatoscópicas do carcinoma espinocelular (CEC), podem-se encontrar vasos polimórficos e se houver ulceração e crostas sanguíneas, que aparecem como manchas avermelhadas a acastanhadas ou pretas na superfície do tumor
Figura 2: A histopatologia mostra, no topo da imagem, proliferação de células basaloides com queratinócitos pigmentados na camada basal e formação de pseudocistos correspondendo ao componente queratose seborreica (QS) da lesão
Summary
Seborrheic keratosis (SK) has the typical pigmented dermoscopy features such as fissures and ridges, fat fingers, and cerebriform patterns. Como citar este artigo: Fensterseifer GS, Cafrune FE, Boff AL. Colunas pigmentadas como um achado dermatoscópico de queratose seborreica associada a carcinoma espinocelular. INTRODUÇÃO A queratose seborreica (QS) possui achados dermatoscópicos pigmentados clássicos, como fissuras e sulcos, “fat fingers” e padrão cerebriforme.
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