[Herovici's picropolychromium. Application to the identification of type I and III collagens]

A staining technique differentiating two colorimetric types of connective fibers had been proposed by Herovici previously to the identification of collagen types. This technique has been applied to skin, lung and liver specimens and the results have been compared with immunotyping and literature data on collagen types I, III and IV. The conclusions are focused on the ability of the technique to identify at a first approach collagen types I and III, which are known to be of crucial importance in mechanical tissular properties.