Pleural and Peritoneal Fluids Cytology
Q: Pleural fluid containing many lymphocytes suggests what most likely diagnosis?
Did You Know?
Tumors have multiple evasion strategies. One major mechanism is the expression of inhibitory ligands like PD-L1. When PD-L1 on the tumor binds to PD-1 on T cells, it sends an 'off' signal that suppresses T cell function, allowing the tumor to escape destruction.
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