Image 2 (image) Centro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.) Share Print E-Mail Caption Immunofluorescence image of a section of an ovarian tumor, showing the presence of infiltrating peritoneal macrophages (cells with a red nucleus surrounded by green cytoplasm). Credit CNIC Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.