title: Adenomatoid tumor of the male genital tract -- a pathological study of eight cases and review of the literature.
abstract: Eight cases of adenomatoid tumors of the male genital tract are presented. Histological, histochemical, and electron microscopic studies were performed and an approach to a new classification of adenomatoid tumors was discussed. The number of so-called adenomatoid tumors of male genital tract reported in Japan adding our eight cases totalled 60 cases. These were classified as follows; 10 cases of mesothelial (superficial) type and 50 cases of adenomatoid (profound) type. Besides these, 8 cases of mesothelial type were reported in foreign literatures. Three cases of adenomatoid tumors of the uterus and a case of epididymitis chronica with reactive proliferation of mesothelial cells were also examined. As a result of these investigations, it is suggested that the histogenesis of the so-called adenomatoid tumors is composed of two different processes; i.e., mesothelial type arising from serosal mesothelial cells. and adenomatoid type arising from immature Müllerian mesenchymal tissue.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D005834:Genital Neoplasms, Male / Q000473:pathology*; D006801:Humans; D008297:Male; D008650:Mesonephros / Q000473:pathology; D008654:Mesothelioma / Q000145:classification / Q000209:etiology / Q000473:pathology*; D008875:Middle Aged; D009095:Mullerian Ducts / Q000473:pathology; D014594:Uterine Neoplasms / Q000473:pathology