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Subungual exostosis in the hand.

R E Carroll1, J T Chance, Y Inan

  • 1Columbia-Presbyterian Medical Center, New York.

Journal of Hand Surgery (Edinburgh, Scotland)
|October 1, 1992
PubMed
Summary

Subungual exostosis is a common hand tumor. This study reports 16 new cases, totaling 50, and details effective surgical removal for a pain-free, functional finger.

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Area of Science:

  • Orthopedic Surgery
  • Oncology
  • Dermatology

Background:

  • Subungual exostosis of the hand is a relatively common tumor.
  • Only 34 cases have been previously reported in the literature.
  • This study presents the largest published series to date.

Purpose of the Study:

  • To report a series of subungual exostosis cases in the hand.
  • To highlight diagnostic challenges and emphasize the importance of accurate diagnosis.
  • To describe the surgical management and outcomes of this condition.

Main Methods:

  • Retrospective review of 16 cases of subungual exostosis.
  • Analysis of presenting symptoms, diagnostic methods, and treatment outcomes.
  • Comparison with existing literature.

Main Results:

  • 16 new cases are reported, bringing the total to 50.
  • Seven cases initially received an incorrect diagnosis.
  • X-ray imaging is crucial for differentiating subungual exostosis from other bone lesions.
  • Surgical excision resulted in pain-free, functional fingers without nail deformity.
  • No cases of malignancy were reported.

Conclusions:

  • Subungual exostosis is a benign bone tumor that can occur under the fingernail.
  • Accurate diagnosis is essential, as it can be mistaken for other conditions.
  • Surgical excision is an effective treatment, leading to excellent functional outcomes.
  • The condition has a favorable prognosis with no reported cases of malignancy.

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