Abstract
We report our experience with a case of glomus tumor that caused intractable pain in the right thumb. The patient was a 72-year-old man with a one-year history of right thumb pain for which the cause could not be identified, despite visits to multiple medical institutions. On initial examination, marked tenderness in the proximal phalanx of the right thumb and pain with movement of the right thumb were observed. No other clear abnormalities were seen. MRI showed a well defined tumor in the proximal phalanx of the right thumb that was hypointense on T1-weighted imaging and hyperintense on T2-weighted imaging. The tumor was surgically resected, after which the pain disappeared. The present case suggests the need to consider glomus tumor as a cause ofidiopathic finger pain.