Extradigital glomus tumor: A rare case report.

Glomus tumors are benign soft tissue tumors of the glomus body, most regularly found in the sublingual region of the digits, palms, and soles. Extra digital lesions are uncommon and might be difficult to diagnose. We report a rare case of a 38-year-old man who presented with a painful nodule on his right upper arm. A definite diagnosis was made by histopathological study. A complete surgical excision was performed to avoid recurrence. Glomus tumors form less than 2 % of all soft tissue tumors. The tumor was first reported by Wood in 1812. It typically appears like a small blue-red solitary papule in the hand especially the digits, which are the most prevalent location for glomus tumors with an incidence rate of up to 75 %. The histopathology findings of glomus tumor, are three components: glomus cells, vasculature, and smooth muscle cells. The preferred method of treatment is total excision to prevent a recurrence. Eventually, the glomus tumor is fairly a rare benign tumor that physicians should keep in mind as a deferential diagnosis when facing a subcutaneous nodule and don't rule out when the tumor is extradigital.

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Conflict of interest statement The authors have no conflicts of interest to declare.