Biphasic synovial sarcomas arising in the pleural cavity: A clinicopathologic study of five cases

Erich Gaertner, E. Handan Zeren, Marian V. Fleming, Thomas V. Colby, William D. Travis

Research output: Contribution to journalArticle

129 Citations (Scopus)

Abstract

Five cases of primary synovial sarcoma of the pleura are presented with a discussion of differentiation from other biphasic malignant neoplasms, most notably malignant mesothelioma. The cases have clinical, histologic, and immunohistochemical features consistent with synovial sarcoma of soft tissue. The average age at initial presentation of the reported patients was 25 years with an approximate range of 9 to 50 years. A large pleural-based intrathoracic mass was identified in each case. Histologic analysis showed a biphasic (mixed) pattern composed of epithelial and spindle cells. The epithelial cells showed cleft-like to tubulopapillary growth with focal intraluminal periodic acid Schiff's (PAS)-positive, diastase-resistant secretions identified in four of the five cases. The spindle cell component was composed predominantly of densely packed, elongated, fusiform cells. Immunohistochemical staining showed positivity with antibodies against cytokeratin, BER.EP4, epithelial membrane antigen, and vimentin in all cases. The patients seem to have fin aggressive course, with four deaths reported within 3 years from initial surgery. These cases represent the first reported cases of primary synovial sarcoma of the pleura and lend further credence to the theory that synovial sarcomas are derived from immature mesenchymal elements, not from synovium.

Original languageEnglish (US)
Pages (from-to)36-45
Number of pages10
JournalAmerican Journal of Surgical Pathology
Volume20
Issue number1
DOIs
StatePublished - Jan 1996

Fingerprint

Synovial Sarcoma
Pleural Cavity
Pleura
Epithelial Cells
Mucin-1
Periodic Acid
Synovial Membrane
Vimentin
Cellular Structures
Amylases
Keratins
Staining and Labeling
Antibodies
Growth
Neoplasms

Keywords

  • Malignant mesothelioma
  • Pleura
  • Sarcoma
  • Synovial sarcoma

ASJC Scopus subject areas

  • Anatomy
  • Pathology and Forensic Medicine

Cite this

Biphasic synovial sarcomas arising in the pleural cavity : A clinicopathologic study of five cases. / Gaertner, Erich; Zeren, E. Handan; Fleming, Marian V.; Colby, Thomas V.; Travis, William D.

In: American Journal of Surgical Pathology, Vol. 20, No. 1, 01.1996, p. 36-45.

Research output: Contribution to journalArticle

Gaertner, Erich ; Zeren, E. Handan ; Fleming, Marian V. ; Colby, Thomas V. ; Travis, William D. / Biphasic synovial sarcomas arising in the pleural cavity : A clinicopathologic study of five cases. In: American Journal of Surgical Pathology. 1996 ; Vol. 20, No. 1. pp. 36-45.
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