MRI manifestations of bowler's thumb

Martha F. Showalter, Donald J. Flemming, Stephanie A. Bernard

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Bowler's thumb is a rare perineural fibrosis involving the ulnar digital nerve of the thumb. Affected patients present with pain, neuropathy, and mass lesion. The condition is caused by chronic repetitive impaction of the ulnar soft tissues of the thumb against the thumbhole of a bowling ball. In our case, MRI showed decreased signal intensity on both T1- and T2-weighted images surrounding an enlarged ulnar digital nerve of the thumb. The findings can be confused with giant-cell tumor of the tendon sheath or peripheral-nerve-sheath tumor.

Original languageEnglish (US)
Article number458
Pages (from-to)458
Number of pages1
JournalRadiology Case Reports
Issue number1
StatePublished - 2011

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging


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