59-year-old male with pain in the nail bed

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Evaluate for glomus tumor right thumb mass. Pain under the nail. Had excision a year ago with nail regrowth ridge which is red and painful.

Long- and short-axis fat- and water-weighted images were performed. 

  • Lobulated region of T2 hyperintensity within the nail bed of the thumb measures 7 x 4 x 7.5mm. Signal characteristics and location are consistent with a glomus tumor. 
  • No fracture is demonstrated. Mild degeneration at the interphalangeal joint is demonstrated. Flexor and extensor tendons are intact. Mild degeneration involves the MCP joint of the thumb. 2nd MCP joint degeneration is also noted. 

Glomus tumor measures 7 x 4 x 7.5mm within the nail bed of the thumb. Tumor is located within the central aspect of the nail bed.

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