16-year-old male with pain in thumb and temperature sensitivity

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Evaluate right thumb nail for lesion evaluate for infections foreign body.

Long- and short-axis fat- and water-weighted images were performed. 1.5T High Field Oval.

Bony scalloping associated with soft tissue lesion T2 hyperintense T1 signal nominally increased versus skeletal muscle. Lesion measures 4.7mm longitudinally 4.4mm in transverse diameter with a depth (thickness 2.6mm). Normal flexor and extensor tendons of the thumb. Collateral ligaments intact.

  • Glomus tumor (subungual location) ulnar margin at the mid distal phalanx of the thumb. Associated reactive bony scalloping. Size 5 X 3 mm on dorsoulnar portion of mid nailbed.
  • No fracture. No foreign body.

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