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1/2020 Massive pericardial effusion in an elderly male. Metastatic lung adenocarcinoma. #cytology #CytoPath #cellblock #lungca Pap stain, MGG, cell block and IHC.
1. Multilayered cell balls, smooth outlines, psammoma body 2. Acini in CB @kriyer68 @smlungpathguy @VijayPatho
1. Multilayered cell balls, smooth outlines, psammoma body 2. Acini in CB @kriyer68 @smlungpathguy @VijayPatho
@kriyer68 @smlungpathguy @VijayPatho @drsys02 @Swathiprabhu5 @pathridle_susan @nandishvs * Reactive mesothelial cells can show atypia & proliferation spheres, however - knobby oultline
* Proliferation spheres (cell balls) are solid with stromal cores in mesotheioma unlike carcinoma
* Mesothelial cells: peripheral condensed cytoplasm, vacuoles (intercellular windows)
* Proliferation spheres (cell balls) are solid with stromal cores in mesotheioma unlike carcinoma
* Mesothelial cells: peripheral condensed cytoplasm, vacuoles (intercellular windows)
* PsB in pleural and pericardial effusions are usually seen in malignant effusions - thyroid, ovary, lung etc.
* In peritoneal effusion however, PsB may be associated with benign mesothelial hyperplasia, endometriosis etc
* Not all ca. show cell balls- SCC, ILC, Signet ring ca
* In peritoneal effusion however, PsB may be associated with benign mesothelial hyperplasia, endometriosis etc
* Not all ca. show cell balls- SCC, ILC, Signet ring ca
