Alacsony malignitású fibromyxoid sarcoma a temporalis izomban

Translated title of the contribution: Low grade fibromyxoid sarcoma of the temporalis muscle - A case report

Kovács S. Krisztián, Fan Rong, Edward A. Michals, Dósa Sándor, John L. Villanó, Vályi Nagy Tibor

Research output: Contribution to journalArticle

Abstract

Low grade fibromyxoid sarcomas (LGFMS) in most cases arise in the skeletal muscle primarily in young to middle-aged adults. Males are affected more commonly than females. The tumour tipically arises in the lower extremities, particularly the thigh. Hyalinizing spindle cell tumor with giant rosettes is a variant of LGFMS that demonstrates a significant overlap with classic LGFMS regarding patient age and tumor location, histological appearance and metastatic potential. CASE REPORT - A 76 year-old male presented with a ten-year history of a painless, slow-growing, hard consistency, left-sided temporal mass. The radiological differential diagnosis included liposarcoma, malignant fibrous histiocytoma and rhabdomyosarcoma. Histopatholo-gical examination revealed low grade fibromyxoid sarcoma featuring low cellularity, col-lagenized areas and alternating myxoid areas, and a focal whorling pattern of tumour cells that were immunoreactive for vimentin, but were negative for S100, CD34, muscle specific actin, desmin and cytokeratin (AE1/AE3). CONCLUSIONS - To the best of our knowledge, this is the first report of low grade fibromyxoid sarcoma involving the temporalis muscle.

Original languageHungarian
Pages (from-to)791-795
Number of pages5
JournalLege Artis Medicinae
Volume18
Issue number11
StatePublished - Nov 1 2008

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Keywords

  • Differential diagnosis
  • Head and neck region
  • Low grade fibromyxoid sarcoma
  • Temporalis muscle

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Krisztián, K. S., Rong, F., Michals, E. A., Sándor, D., Villanó, J. L., & Tibor, V. N. (2008). Alacsony malignitású fibromyxoid sarcoma a temporalis izomban. Lege Artis Medicinae, 18(11), 791-795.