A 54-year-old woman presented with a two-year-history of tenderness and cold sensitivity of the subungueal region of her 3 left finger. Physical examination revealed a pinkish red spot under the nail. Ultrasonography of the 3 left finger shows a well-delimited hypoechoic and hypervascularised mass in the subungueal area (Fig. A). X-ray of the 3 left finger shows well-defined bony erosion with sclerotic margins in the distal phalanx (scalloping) which indicating a chronic growth lesion (Fig. B). The diagnosis proposed was the glomus tumor. A tumor excision was performed and the histologic examination confirmed the glomus tumor diagnosis (Fig. C). The localized pain and point tenderness disappeared after surgical excision. The patient did not experience any recurrence or further complications.