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Diagnostic considerations in prolymphocytes in pleural fluid: a case report
Mona Anand1, Shruti Sharma, Rajive Kumar
1Laboratory Oncology Unit, Institute Rotary Cancer Hospital, All India Institute of Medical Sciences, New Delhi, India.
Acta Cytologica
|May 27, 2008
Summary
Prolymphocytes in body fluids can be mistaken for leukemia blasts. Increased awareness and immunophenotyping are crucial for accurate diagnosis of prolymphocytic leukemia (PLL) and chronic lymphocytic leukemia (CLL).
Area of Science:
- Hematology
- Cytopathology
- Oncology
Background:
- Prolymphocytes are key features of prolymphocytic leukemia (PLL) and chronic lymphocytic leukemia (CLL).
- These cells are often unfamiliar in cytopathology, especially in body fluid samples.
- Prolymphocytes can be mistaken for blasts or adult T-cell leukemia/lymphoma (ATLL) cells.
Observation:
- A patient initially diagnosed with acute leukemia presented with symptoms including shortness of breath and enlarged liver/spleen.
- Peripheral blood analysis revealed a high leukocyte count predominantly composed of prolymphocytes.
- Prolymphocytes in pleural fluid exhibited prominent nucleoli and pleomorphism, mimicking blasts or ATLL cells.
Findings:
- Prolymphocytes in body fluids pose a diagnostic challenge due to their resemblance to other malignant cells.
- Misinterpretation can occur, particularly when prolymphocytes are found in pleural effusions.
- Accurate identification requires careful consideration of clinical and laboratory findings, including peripheral blood and bone marrow analysis.
Implications:
- Enhanced cytopathologist awareness of prolymphocytes and associated conditions is vital.
- Integrating pleural fluid findings with systemic data prevents misdiagnosis.
- Immunophenotyping is essential for definitive diagnosis in ambiguous cases.
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