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[Rectal cancer (a differential electron microscopic diagnosis)]
Arkhiv Patologii
|January 1, 1982
Summary
This study describes a rectal tumor in a 74-year-old woman. Electron microscopy revealed squamous cell carcinoma markers in a subset of cells, clarifying the initial diagnosis.
Area of Science:
- Oncology
- Pathology
- Electron Microscopy
Background:
- A 74-year-old female presented with a rectal tumor.
- Initial light microscopy suggested a poorly differentiated cancer or melanoma.
Observation:
- Electron microscopy was used to examine tumor metastasis in a lymph node.
- Most tumor cells lacked specific ultrastructural markers.
Findings:
- A small group of tumor cells exhibited tonofibrils and desmosomes.
- These ultrastructural features confirmed a diagnosis of squamous cell carcinoma.
Implications:
- Highlights the importance of advanced microscopy in diagnosing challenging cancer cases.
- Demonstrates that even rare cell populations can be critical for accurate histopathological diagnosis.
- Contributes to understanding the heterogeneity of rectal tumors.