Plastic and Reconstructive Surgery, Global Open (Feb 2018)

Spindle Cell Lipoma of the Thumb

  • Shogo Ebisudani, MD, PhD,
  • Ikuko Osugi, MD, PhD,
  • Kiichi Inagawa, MD, PhD,
  • Yoshinori Suzuki, MD, PhD,
  • Tomomi Kimura, MD

DOI
https://doi.org/10.1097/GOX.0000000000001671
Journal volume & issue
Vol. 6, no. 2
p. e1671

Abstract

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Summary:. We report the case of a 34-year-old man who presented with a 4-year history of a soft tissue on the palmar aspect of the thumb. Magnetic resonance imaging demonstrated the presence of a mass with heterogeneous high intensities on T1-weighted images and high intensities on T2-weighted images. We performed excisional biopsy. Histologically, the tumor was composed of mature adipocytes and spindle cells in a collagen background. Immunohistochemically, the tumor cells showed strong expression of CD34. Therefore, we diagnosed it as spindle cell lipoma. To the best of our knowledge, only 2 cases of spindle cell lipoma of the thumb have previously been reported.