A pathologist is reviewing the slides from the pleural fluid of a 50-year-old male who has hepatosplenomegaly and minimal lymphadenopathy Option. It is not clear whether the mononuclear cells are mature lymphoma cells or leukemic blasts Option. There is not enough material for flow cytometry to do immunophenotyping, but there is enough to make a few extra cytospin smears Option. 

Whay stain do you think would be useful in this case? Solve