[Cytoenzymatic and cytoimmunological changes in capillary blood neutrophils of patients with Horton's headache].

In 11 patients with Horton's headache morphological investigations (differential white blood cell count), cytoenzymatic determinations (alkaline and acid phosphatase, non-specific esterase) and cytoimmunological tests (IgM and IgG binding) were carried out on capillary blood neutrophils obtained from the area of pain, non-painful area of the skin on the head on the contralateral side, and from the finger. The observed changes suggest an active participation of neutrophils in the pathological mechanism of Horton's headache and anaphylactoidal background of the disease.