Fibrin
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Fibrin is a fibrous, non-globular protein involved in the clotting of blood. It is formed by the action of the protease thrombin on fibrinogen, which causes it to polymerize. The polymerized fibrin, t
Composition of a fresh thrombus at microscopy, HE stain, showing nuclear debris in a background of fibrin and red blood cells.
Micrograph showing fibrin (dark pink amorphous material) in a blocked vein surrounded by extravasated red blood cells (right of image). An artery (left of image) and the amnion (far left of image) is also seen. Placenta in a case of fetal thrombotic vasculopathy. H&E stain.
Phosphotungstic acid haematoxylin is a mix of haematoxylin with phosphotungstic acid, used in histology for staining.
Phosphotungstic acid-haematoxylin staining demonstrating contraction band necrosis in an individual who had a myocardial infarction (heart attack).