The lipopigments in human brain tissue necroses. II. Hemoceroid.

A serial and comparative histochemical examination of lipopigments in human brain tissue necroses led to a more exact characterization of a chromolipid called "hemoceroid". It arises only in necroses with hemorrhages and not in anemic necroses nor in subdural hematomas. Its histochemical properties differ from those of all developmental stages of ceroid. An ageing phenomenon is absent. The very intense autofluorescence of the thick, clotted pigment ist striking. Hemoceroid seems to arise extracellularly and is absorbed secondarily by macrophages.