Ossifying fibromyxoid tumor of soft parts presenting as a scalp cyst

John T. Seykora, Cynthia Kutcher, Matt Van De Rijn, Leonard Dzubow, Jaqueline Junkins-Hopkins, Micheal Ioffreda

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Background: Ossifying fibromyxoid tumor of soft parts (OFMT) is a rare mesenchymal neoplasm of intermediate malignant potential. The tumor most commonly occurs on the extremities with a male predominance. We present an unusual case of OFMT occurring as a cystic lesion on the scalp of a female. Case history: A 67-year-old woman presented with a 6-year history of a well demarcated cystic scalp mass. Physical examination revealed a slightly movable, multilobular mass of the left parietal scalp which was subsequently excised. Histological evaluation revealed an OFMT comprised of bland, small cells and a thick collagenous capsule containing an incomplete rim of lamellar bone. Conclusion: OFMT is an unusual tumor which can usually be considered as having an intermediate risk of malignancy. It generally occurs in the extremities with a male predominance. The clinical differential for a cystic mass on the scalp is broadened by this unusual case of an OFMT.

Original languageEnglish (US)
Pages (from-to)569-572
Number of pages4
JournalJournal of Cutaneous Pathology
Issue number8
StatePublished - Aug 1 2006


All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine
  • Histology
  • Dermatology

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