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Cell Cannibalism: A cytological study in effusion samples
Cherry Bansal1, Vandana Tiwari, Us Singh
1Department of Pathology, Eras Medical College and Hospital, Lucknow, India.
Journal of Cytology
|June 30, 2011
Summary
Cell cannibalism in malignant effusions indicates disseminated malignancy and higher tumor stage. This finding in effusion cytology can predict tumor progression from primary to metastatic sites.
Area of Science:
- Cytopathology
- Oncology
- Diagnostic Pathology
Background:
- Cytological examination of effusion fluid is a valuable diagnostic tool for malignancy.
- Distinguishing primary and secondary malignancies is crucial for patient management.
Purpose of the Study:
- To investigate the cytological significance of cell cannibalism in malignant effusion samples.
- To determine if cell cannibalism correlates with the extent and stage of malignancy.
Main Methods:
- Retrospective review of 100 malignant effusion cases (excluding hematolymphoid malignancies).
- Analysis of smears for the presence of cell cannibalism (tumor cell within a tumor cell).
- Comparison of cannibalism frequency in contiguous local spread versus disseminated malignancy.
Main Results:
- Cell cannibalism was significantly more frequent in disseminated malignancy (18%) compared to contiguous local spread (4%) (P=0.025).
- Carcinoma of the lung was the most common malignancy associated with cannibalism (6/11 cases).
- Histiocytes with phagocytosis can mimic tumor cells, requiring careful cytomorphological distinction.
Conclusions:
- Cell cannibalism in malignant effusions is a strong indicator of disseminated malignancy and advanced tumor stage.
- The presence of cell cannibalism may serve as a reliable predictor of tumor progression to metastatic sites.
- This cytological feature aids in understanding tumor spread and prognosis.
