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Interdigitating cell sarcoma. A morphologic, immunohistologic, and enzyme-histochemical study.

S Nakamura1, K Hara, T Suchi

  • 1Department of Pathology, Nagoya University School of Medicine, Japan.

Cancer
|February 1, 1988
PubMed
Summary

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This study describes a rare cervical lymph node sarcoma in a 58-year-old man, involving mesenteric lymph nodes and jejunum. The findings suggest the tumor originated from lymph node interdigitating reticulum cells.

Area of Science:

  • Oncology
  • Immunohistochemistry
  • Pathology

Background:

  • Lymph node sarcomas are rare and challenging to diagnose.
  • Interdigitating reticulum cell (IRC) tumors are uncommon neoplasms of the lymph node system.

Observation:

  • A 58-year-old male patient presented with a cervical lymph node sarcoma.
  • The tumor extended to the mesenteric lymph node and jejunum.
  • Immunohistochemical analysis revealed intracytoplasmic S100 protein, Leu-3a (T4), and HLA-DR antigens.

Findings:

  • Neoplastic cells exhibited membranous ATPase activity.
  • Negative markers included LeuM1, T6, Leu1, Leu2a, B1, lysozyme, and immunoglobulin.
  • Electron microscopy showed fine structures consistent with interdigitating cells.

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Implications:

  • These findings support the origin of the sarcoma from lymph node interdigitating reticulum cells.
  • This case contributes to understanding rare lymphoid neoplasms.
  • Accurate diagnosis is crucial for appropriate patient management.