No abstract

Ascitic fluid involvement by mediastinal T lymphoblastic lymphoma is very unusual. These cases can easily be differentiated from their morphological mimickers with the help of immunocytochemistry or flow cytometry on the fluid sample. T lymphoblastic lymphoma can present with superior vena cava syndrome which needs an early diagnosis for accurate management.

Anaplastic large cell lymphoma is commonly diagnosed on biopsy or fine needle aspiration but it is very rarely reported in fluid cytology. However, this tumor can be easily diagnosed and confirmed from the cytosmears of serous effusion samples.