CTRP Terminology Leukocyte Monocyte monocyte C0026473 MONOCYTE A type of immune cell that is made in the bone marrow and travels through the blood to tissues in the body where it becomes a macrophage. Macrophages surround and kill microorganisms, ingest foreign material, remove dead cells, and boost immune responses. A monocyte is a type of white blood cell and a type of phagocyte. CDISC Monocyte Monocyte Monocyte C12547 Large, phagocytic mononuclear leukocytes produced in the vertebrate bone marrow and released into the blood; contain a large, oval or somewhat indented nucleus surrounded by voluminous cytoplasm and numerous organelles. CTRP A large, phagocytic mononuclear leukocyte produced in the vertebrate bone marrow and released into the blood; containing a large, oval or somewhat indented nucleus surrounded by voluminous cytoplasm and numerous organelles. Monocytes Monocyte Cell CTRP Biomarker Terminology Clinical Data Interchange Standards Consortium Terminology CDISC SDTM Terminology CDISC SDTM Specimen Type Terminology