Extradigital glomus tumor: dermoscopic description and histopathological correlation

• Published in: Anais brasileiros de dermatología Vol. 96; no. 6; pp. 765 - 767
• Main Authors: Garcia, Lucas Campos, Fernandes, Ethel Nunes de Sousa, Sobreira, Natália de Paiva, Bittencourt, Flávia Vasques
• Format: Journal Article
• Language: English
• Published: Spain Elsevier España, S.L.U 01-11-2021; Sociedade Brasileira de Dermatologia
• Subjects: Brain Neoplasms; DERMATOLOGY; Dermoscopy; Extremities; Glomus tumor; Glomus Tumor - diagnostic imaging; Humans; Images in Dermatology; Pain; Skin diseases; Skin diseases, vascular; vascular; Skin diseases, vascular; Dermoscopy; Glomus tumor; Skin diseases; vascular
• ISSN: 0365-0596; 1806-4841; 1806-4841
• DOI: 10.1016/j.abd.2020.11.008

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.