Fig. 3From: Multifocal pleural capillary hemangioma: a rare cause of hemorrhagic pleural effusion-case reporta Microscopically, the tumor was composed of capillary-sized vessels filled with red blood cells, and the lining endothelial cells showed no significant atypia (hematoxylin–eosin staining; × 100). b–d Immunohistochemical analysis on CD31 and ERG, and Ki-67, respectivelyBack to article page