[Modification of the Heidenhain's method of staining with iron hematoxylin for detection of the A-cells of the islands of Langerhans].

The authors suggest to use iron hematoxylin according to Haidenhain's prescription, with the subsequent passage of stained and differentiated histological sections through the ammonia solution for detection of A-cells in the pancreatic islets. The A-cells cytoplasm stained dark blue intensively; as to the nuclear structures--they acquired bluish-black tints. The method can be used for the study of morphology, topography and the number of A-cells in the islets.