title: Pathological and karyotypic abnormalities in advanced gastric carcinomas.
abstract: Twenty samples of stomach cancers were analyzed by conventional cytogenetic and histopathological techniques. Nineteen tumors were diagnosed as adenocarcinomas and one as an adenosquamous carcinoma. Multiple and complex chromosomal abnormalities were found in the cases evaluated cytogenetically. This heterogeneity of chromosomal changes appears to indicate a certain correlation with tumor progression. Histological analysis showed a distinctive growth pattern of gastric cancer samples and a potential for invasiveness and recurrence for all tumors as well as a poor prognosis.
authors.affiliation: Departamento de Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Brazil.
authors.forename: L A
authors.initials: LA
authors.lastname: Espinoza
authors.forename: J
authors.initials: J
authors.lastname: Barbieri Neto
authors.forename: C
authors.initials: C
authors.lastname: Casartelli
mesh_terms: D000328:Adult; D000368:Aged; D002455:Cell Division; D002869:Chromosome Aberrations; D002871:Chromosome Banding; D025063:Chromosome Disorders; D005260:Female; D006801:Humans; D007621:Karyotyping; D019656:Loss of Heterozygosity; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012729:Sex Chromosome Aberrations; D013274:Stomach Neoplasms / Q000235:genetics* / Q000473:pathology* / Q000601:surgery; D014407:Tumor Cells, Cultured; D014960:X Chromosome; D014998:Y Chromosome