Alveolar Rhabdomyosarcoma (ARMS) in Plerual Fluid
Metastatic alveolar rhabdomyosacroma tumor cells are not as large as adenocarcinoma , but will also present in clumps.
Notice the extremely fine chromatin texture and the very large and prominent nucleoli. Several of these tumor cells are bi-nucleate and a few have very prominent glycogen storage vacuoles in the cytoplasm.