Extradigital glomus tumor: dermoscopic description and histopathological correlation

An Bras Dermatol. 2021 Nov-Dec;96(6):765-767. doi: 10.1016/j.abd.2020.11.008. Epub 2021 Sep 22.

Abstract

Glomus tumors are rare benign neoplasms arising from the neuromyoarterial structure called glomus body. They present as angiomatous papules, soft and painful, especially to cold and pressure. In general, they are solitary and affect the extremities, located mainly the subungual bed. Extradigital lesions are rare and can constitute a diagnostic challenge. This is the report of a patient with an extradigital lesion on the left arm, and its dermoscopic aspects, including angiomatous lagoons circumscribed by a pale halo, a structure not previously described in the two reports of extradigital glomus tumor with dermoscopic features, found in the literature.

Keywords: Dermoscopy; Glomus tumor; Skin diseases, vascular.

Publication types

  • Case Reports

MeSH terms

  • Brain Neoplasms*
  • Extremities
  • Glomus Tumor* / diagnostic imaging
  • Humans
  • Pain