Abstract
Glomus tumors are benign neoplasms that arise from neuromyoarterial glomus bodies, with clinical manifestations that include acute pain, cold intolerance and tenderness. Glomus tumors may occur anywhere in the skin, soft tissue or gastrointestinal tract, but are most frequently encountered in the nail bed of the hands. The present study reports the case of a 30-year-old female with a history of shoulder pain caused by a cystic neoformation. Following surgery, a microscopic examination revealed nests of small cells of a rounded and regular shape. The tumor cells exhibited positive expression for CD34 and smooth muscle actin. This study supports and confirms the fact that a glomus tumor is a benign neoplasm that may occur in multiple locations. Therefore, the significance of a histological and immunohistochemical approach for a correct characterization of this lesion is required.
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