Skip to Main Content

We have a new app!

Take the Access library with you wherever you go—easy access to books, videos, images, podcasts, personalized features, and more.

Download the Access App here: iOS and Android. Learn more here!

II.F.001 Monocyte


Monocyte, normal. Blood film. Three segmented neutrophils, two small lymphocytes. A monocyte is in the center of the field with a large, reniform nucleus and cytoplasmic color invariably distinctly different from that of neutrophils. The monocyte cytoplasm is blue-gray and the neutrophil is light tan. Note also the lighter staining, lacy nuclear appearance in the monocyte and the denser, condensed chromatin in the neutrophils.

II.F.002 Monocyte


Monocyte, normal. Blood film. A composite of four normal monocytes. (A) Folded nucleus. Modest amount of cytoplasm. (B) Folded nucleus. More ample, gray cytoplasm, cytoplasmic vacuoles (often secondary to exposure to Na2EDTA anticoagulant. (C) Reniform nucleus. Ample cytoplasm, azure granules. (D) Circular nucleus. Azure granules.

II.F.003 Monocyte


Monocyte, normal. Blood film. (A) Monocyte with horseshoe-shaped nucleus with enlarged, folded end, gray cytoplasm. (B) Band neutrophil with horseshoe-shaped nucleus and pink-orange cytoplasm. The difference in cytoplasmic coloration is an invariable distinction between monocytes and band neutrophils by light microscopy.

II.F.004 Monocyte


Monocyte, normal. Blood film. Nucleus shaped like a reversed “E”. Ample gray cytoplasm. Small lymphocyte to the right.

II.F.005 Monocyte


Monocyte, normal. Blood film. Monocyte with horseshoe-shaped nucleus. Ample, gray cytoplasm, few azure granules.

II.F.006 Monocyte


Monocyte, normal. Blood film. Monocyte with reniform nucleus. Gray ample cytoplasm. Small lymphocyte to the left and segmented neutrophil below.

II.F.007 Monocyte


Monocyte, normal. Blood film. Monocyte with horseshoe-shaped nucleus with enlarged, folded end. Ample, gray cytoplasm. Small lymphocyte to the right.

II.F.008 Monocytes


Monocytes. Blood Films. (A–E). Characteristic monocyte forms. Note normal variations in nuclear configuration. Usually, reniform.

II.F.009 Monocyte: Transmission Electron Micrograph


Monocyte: transmission electron micrograph. (A) Characteristic reniform nucleus. Heterochromatin condensed along inner surface of nuclear membrane and scattered through nucleus. Cell rich in mitochondria. Cytoplasmic vacuoles are present. Occasional electron-dense primary granules. Cell periphery irregular as a result of finger-like cytoplasmic extensions. (B) Enlargement of area beneath nuclear cleft highlights mitochondria.

II.F.010 Monocyte: Transmission Electron Micrograph

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.