[Demonstration and quantitative analysis of mononuclear phagocytes (monocytes and tissue macrophages) in the sinusoid capillaries of the rat adrenal cortex].

Mononuclear phagocytes of the Rat adrenal cortex were identified by light microscopy after injection of Chinese ink or colloidal iron (Imferon 200). They may be found as endothelial, periendothelial or intracapillary cells. The number of mononuclear phagocytes was much greater in the adult than in the young Rat, with a significant peak 3 hrs. after injection of Chinese ink in the young Rat and two peaks, 4 and 12 hrs. after injection in the adult.