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Synchronous malignancies detected by effusion cytology
1Department of Pathology, Pitt County Memorial Hospital, Greenville, North Carolina, USA.
Diagnostic Cytopathology
|April 2, 1998
Summary
This case report details the first documented diagnosis of two simultaneous cancers using pleural fluid cytology. The findings highlight the importance of considering multiple malignancies when atypical cells are observed.
Area of Science:
- Cytopathology
- Oncology
- Hematology
Background:
- Pleural effusion cytology is a key diagnostic tool.
- Chronic lymphocytic leukemia (CLL) is a common hematologic malignancy.
- Synchronous malignancies present diagnostic challenges.
Observation:
- A 66-year-old male presented with pleural effusion.
- Cytologic examination revealed adenocarcinoma co-existing with chronic lymphocytic leukemia.
- Atypical cell populations were identified in pleural fluid.
Findings:
- The diagnosis of two synchronous malignancies was confirmed via effusion cytology.
- Ancillary studies including immunocytochemistry, flow cytometry, and electron microscopy supported the findings.
- Surgical biopsy confirmed the cytologic diagnosis.
Implications:
- This is the first reported case of diagnosing two synchronous malignancies solely by effusion cytology.
- Cytopathologists should consider the possibility of multiple primary cancers when encountering distinct atypical cell populations.
- This case expands the diagnostic utility of effusion cytology in complex oncologic scenarios.