[A clinico-statistical study of the anatomico-clinical and immunohistochemical correlations in chronic lesions of the oral cavity].

A series of 191 biopsies of the oral cavity (epulides, cysts and granulomas) carried out in 1975-76 (104 cases) and 1985-86 (87 cases) is reported. Data regarding age, sex, site, histopathological diagnosis, dimensions of the lesions and type of operation were processed on an AT mod 280 computer in a file specially created using an Ashton Tate DB 111 Plus. Percentage values relating to epulides proved substantially unchanged. Those regarding cysts showed a particularly evident increase in males, while those relating to granulomas showed a decline in both sexes. From the immunopathological viewpoint, angiomatous epulides, prevalent in the female sex, presented a structural framework different to that of plasma cellular epulides, testified by the presence of vessels lined with endothelia reactive to fucose and with scanty plasmocyte immunoglobulin component.