Rhabdomyosarcoma of the skin resembling carcinosarcoma: Report of a case and literature review

Cristian Scatena, Daniela Massi, Alessandro Franchi, Antonino De Paoli, Vincenzo Canzonieri

Research output: Contribution to journalArticle

Abstract

Rhabdomyosarcomas (RMSs) are soft tissue sarcomas with skeletal muscle differentiation. Cutaneous RMSs are exceedingly rare, and in most cases, they represent metastatic disease or the dermal involvement by a tumor arising in the underlying soft tissues. We herein report the case of a 41-year-old man who developed a cutaneous swelling of the right nasal orbital angle. An initial incisional biopsy showed cytokeratin-positive atypical spindle cells forming long and intersecting fascicles, thus the case was diagnosed as carcinosarcoma. In the subsequent excisional biopsy, the skeletal myogenic differentiation of the tumor cells infiltrating the dermis and subcutis was demonstrated by morphology (presence of rhabdomyoblasts), immunohistochemistry (positivity for desmin, myogenin, myoglobin, and actins), and electron microscopy (evidence of rudimentary sarcomeric structures). A final diagnosis of primary cutaneous RMS was made. The patient was subjected to postoperative radiation and chemotherapy, but after 4 months, the patient developed a tumor recurrence followed by distant metastases and death. Review of the literature reveals that RMSs of the skin are often underrecognized and display peculiar clinical features in comparison with their more common soft tissue counterpart.

Original languageEnglish
JournalAmerican Journal of Dermatopathology
Volume34
Issue number1
DOIs
Publication statusPublished - Feb 2012

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Carcinosarcoma
Rhabdomyosarcoma
Skin
Myogenin
Biopsy
Neoplasms
Desmin
Myoglobin
Dermis
Keratins
Nose
Sarcoma
Actins
Cell Differentiation
Electron Microscopy
Skeletal Muscle
Immunohistochemistry
Radiation
Neoplasm Metastasis
Recurrence

Keywords

  • carcinosarcoma
  • immunohistochemistry
  • rhabdomyosarcoma
  • skin

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Dermatology

Cite this

Rhabdomyosarcoma of the skin resembling carcinosarcoma : Report of a case and literature review. / Scatena, Cristian; Massi, Daniela; Franchi, Alessandro; De Paoli, Antonino; Canzonieri, Vincenzo.

In: American Journal of Dermatopathology, Vol. 34, No. 1, 02.2012.

Research output: Contribution to journalArticle

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