title: [Morphology and histogenesis of yolk sac tumors in the testis].
abstract: The differentiation of yolk sac tumor cells was similar to the processes of development of embryonic and extraembryonic endoderm during the first 7 wk after cleavage. Two ways of yolk sac tumor histogenesis are discussed: differentiation of embryonal carcinoma cells, and redifferentiation of the polypotent undifferentiated anaplastic seminoma cells. Histogenesis features described may be responsible for aggressive nature and high malignancy of yolk sac tumors.
mesh_terms: D002454:Cell Differentiation; D006651:Histocytochemistry; D006801:Humans; D008297:Male; D008649:Mesonephroma / Q000201:enzymology / Q000209:etiology / Q000473:pathology*; D008854:Microscopy, Electron; D010088:Oxidoreductases / Q000378:metabolism; D013736:Testicular Neoplasms / Q000201:enzymology / Q000209:etiology / Q000473:pathology*; D013737:Testis / Q000201:enzymology / Q000473:pathology
chemical_list: D010088:Oxidoreductases
vernacular_title: Morfologiia i gistogenez opukholeĭ zheltochnogo meshka v iaichke.