Macrophage foam cell, illustration. Foam cells are macrophage cells that contain lipid droplets and are components of atherosclerotic plaque.

Atheromatous plaque inside blood vessel, computer illustration. A cholesterol atheroma is causing a narrowing of an artery (atherosclerosis). The inset shows a cross-section of the plaque and its histological structure, such as necrotic centre, foam...

Alveolar tissue macrophage, computer illustration. A tissue macrophage is a large, mature phagocyte that can ingest and destroy invading microbes, foreign particles, cancerous or diseased cells and cellular debris. Alveolar (lung pleural cavity)...

Atheromatous plaque inside blood vessel, computer illustration. A cholesterol atheroma is causing a narrowing of an artery (atherosclerosis). The inset shows a cross-section of the plaque and its histological structure, such as necrotic centre, foam...

Atheromatous plaque inside blood vessel, computer illustration. A cholesterol atheroma is causing a narrowing of an artery (atherosclerosis). The inset shows a cross-section of the plaque and its histological structure, such as necrotic centre, foam...

Macrophage, illustration

Macrophage, illustration

Macrophage, illustration

Macrophage attacking bacteria, computer artwork.

Pluripotent stem cell. Coloured scanning electron micrograph (SEM) of a pluripotent stem cell derived from a macrophage white blood cell. Magnification: x4000 when printed at 10 centimetres wide.

Chronic abscess, light micrograph

Human blood cells, SEM

Alveolar macrophage phagocytosis of E. coli (mammal lung pleural cavity), coloured scanning electron micrograph (SEM). Note the macrophage has short filopodia that extend from the cell and aid in finding bacteria for phagocytosis. A tissue macrophage...

Alveolar macrophage phagocytosis of E. coli, coloured scanning electron micrograph (SEM). A red blood cell is in the periphery (mammal lung pleural cavity). Note the macrophage has short filopodia that extend from the cell and aid in finding bacteria...

Illustration of a cancer cell being attacked by white blood cells.

Illustration of a cancer cell being attacked by white blood cells.

Macrophage. Coloured scanning electron micrograph (SEM) of a macrophage white blood cell. Macrophages are cells of the body's immune system. They are found in the tissues rather than in the circulating blood. Macrophages recognise foreign particles,...

Close-up of human cells

3D rendering of macrophage phagocytosis.

Close-up of human cells

Schematic showing the relative sizes of red blood cells, lymphocytes, and macrophages.

Close-up of human cells

Close-up of human cells and human veins

Schematic representation of a blood smear as seen through a microscope; unusual number of monocytes and macrophages would suggest mononucleosis; smaller disk-shaped cells are erythrocytes.

Conceptual image of cancer virus.

Conceptual image of cancer virus.

Microscopic view of phagocytic macrophages.

Conceptual image of cancer virus.

Histopathology and pathophysiology of diabetic food ulcers.

Macrophage foam cell, illustration