Superficial angiomyxoma of the thumb mimicking a malignant bone tumor: case report

J Hand Surg Am. 2014 May;39(5):937-9. doi: 10.1016/j.jhsa.2014.01.004. Epub 2014 Feb 28.

Abstract

Superficial angiomyxoma is a distinctive cutaneous soft tissue neoplasm commonly involving dermal and subcutaneous tissues and showing a prominent angiomyxoid matrix interspersed with numerous blood vessels. We report a case of superficial angiomyxoma in a 70-year-old man who presented with a fungating swelling on the distal phalanx of the thumb mimicking a malignant tumor. The diagnosis of superficial angiomyxoma was made based on histopathology and immunohistochemistry. We report this lesion because of its rare presentation with extensive distal phalangeal osteolysis mimicking a malignant bone tumor.

Keywords: Thumb tumor; angiomyxoma; lytic lesion.

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Bone Neoplasms / diagnosis*
  • Diagnosis, Differential
  • Humans
  • Male
  • Myxoma / diagnosis*
  • Myxoma / pathology
  • Soft Tissue Neoplasms / diagnosis*
  • Soft Tissue Neoplasms / pathology
  • Thumb*