Fig. 2From: Immunoglobulin G4-related constrictive pericarditis identified by cytological examination of pericardial effusion: a case reportThe findings from cytological examination of the pericardial effusion. a Giemsa staining revealed three or four plasma cells per high-power field in the pericardial effusion (white arrows). b Immunoglobulin G4-positive plasma cells were detected in the pericardial effusion by immunostaining (black arrows)Back to article page