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Related Experiment Videos

Primary intra-abdominal synovial sarcoma.

Yzu-Jen Wang1, Shi-Chi Wen, Shang-Tao Chien

  • 1Division of Gastroenterology, Department of Medicine, Kaohsiung Military General Hospital, Kaohsiung, Taiwan, R.O.C. wow_wang630324@yahoo.com.tw

Journal of the Chinese Medical Association : JCMA
|November 14, 2006
PubMed
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This case study details a rare primary intra-abdominal synovial sarcoma found in the omentum of a 66-year-old male. Diagnosis was confirmed through pathological and immunohistochemical analysis of the biphasic tumor.

Area of Science:

  • Oncology
  • Pathology
  • Surgical Gastroenterology

Background:

  • Synovial sarcoma is a rare soft tissue sarcoma, typically affecting extremities, with intra-abdominal presentation being exceptionally uncommon.
  • Primary intra-abdominal synovial sarcoma, particularly originating from the omentum, represents a diagnostic and therapeutic challenge due to its rarity and potential for delayed detection.

Observation:

  • A 66-year-old male presented with intermittent abdominal fullness and tenesmus.
  • Physical examination revealed a palpable, solid, hard, and well-defined abdominal mass.
  • Abdominal computed tomography identified a large, heterogeneous mass in the mid-abdomen, extending from the liver (segments S2, S3) to the transverse colon.

Findings:

  • Histopathological examination of the resected mass demonstrated biphasic features, comprising both spindle and epithelial cell components.

Related Experiment Videos

  • Immunohistochemical analysis confirmed the diagnosis of biphasic synovial sarcoma.
  • The tumor's origin was identified as the omentum, classifying it as a primary intra-abdominal synovial sarcoma.

    • Implications:

    • This case highlights the importance of considering rare soft tissue sarcomas in the differential diagnosis of intra-abdominal masses, even in atypical locations.
    • Accurate pathological and immunohistochemical characterization is crucial for diagnosing intra-abdominal synovial sarcoma and guiding appropriate treatment strategies.
    • Further research into the specific etiology and optimal management of intra-abdominal synovial sarcomas is warranted to improve patient outcomes.