Mature LYMPHOCYTES and MONOCYTES transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules.

Synonyms: Leukocyte, Mononuclear, Peripheral Blood Human Mononuclear Cells, Peripheral Blood Mononuclear Cell, Mononuclear Leukocytes, PBMC Peripheral Blood Mononuclear Cells, Peripheral Blood Mononuclear Cells, Leukocytes, Mononuclear, Mononuclear Leukocyte