Positive pleural cytology is an indicator for visceral pleural invasion in metastatic pleural effusions.
Marios E FroudarakisJerôme PlojouxElise KaspiStavros AnevlavisSophie LaroumagneGeorgia KarpathiouElisa RocaDan AdlerHervé DutauPhilippe AstoulPublished in: The clinical respiratory journal (2017)
In patients with pleural metastatic disease, visceral pleural invasion is the only significant factor associated with positive pleural fluid cytology.