Dermoscopy of non-pigmented eccrine poromas: study of Mexican cases

Ana Elena Domínguez-Espinosa; Blanca Carlos Ortega; Ricardo Quiñones Venegas; Roger González Ramírez

doi:10.5826/dpc.0301a07

Dermoscopy of non-pigmented eccrine poromas: study of Mexican cases

Authors

Ana Elena Domínguez-Espinosa Hospital General de Zona 8, Gilberto Flores Izquierdo, Instituto Mexicano del Seguro Social, Mexico City, Mexico
Blanca Carlos Ortega Hospital de Especialidades, Centro MÉdico La Raza, Instituto Mexicano del Seguro Social, Mexico City, Mexico
Ricardo Quiñones Venegas Instituto Dermatológico de Jalisco, Guadalajara, Mexico
Roger González Ramírez Servicios Médicos, U.A.N.L., Monterrey, Mexico

Keywords:

dermoscopy, eccrine poroma, polymorphous vascular pattern

Abstract

Background: Eccrine poroma is a benign neoplasm that can mimick a malignant neoplasm dermoscopically. The characteristic vascular pattern of this tumor has not been established.

Objective: To evaluate dermoscopic features of non-pigmented eccrine poroma in Mexican patients.

Method: We retrospectively studied histologically proven cases of eccrine poroma from three Mexican hospitals analyzed by four dermoscopists.

Results: Thirteen cases were studied. A polymorphous vascular pattern was found in most cases. Four presented with irregular linear and branched vessels with semi-elliptical, or semicircular endings (“chalice-form” and “cherry-blossoms” vessels). Structureless pink-white areas were the most common other dermoscopic finding.

Conclusions: “Chalice-form” and “cherry-blossom” vessels have not been reported in other benign or malignant neoplasms and can be a useful clue to the diagnosis of non-pigmented eccrine poroma.

Due to the variability of dermoscopic patterns of eccrine poroma further studies are required to establish the specificity of our findings.