Atypical epithelial changes and mutant p53 gene expression in ovarian endometriosis.
Pathol Oncol Res
; 7(1): 33-8, 2001.
Article
em En
| MEDLINE
| ID: mdl-11349218
ABSTRACT
It has been reported that cases of ovarian endometriosis those with epithelial cytological atypia have potential for malignant transformation. This study was planned to determine the incidence of atypical endometriosis and its cytological criteria, to evaluate the malignant potential of atypical endometriosis via immunohistochemical methods (p53). In this study we evaluated 140 samples obtained from 120 cases of ovarian endometriosis and 10 ovarian endometrioid carcinomas that have been previously diagnosed histopathologically. We re-evaluated endometriosis cases with respect to their epithelial and stromal features, existence of acute or chronic inflammatory cells in endometriotic epithelium or stroma and other accompanying histological findings. We observed atypia in 7 (5.8%) cases; reactive atypia in 37 (30.8%) cases, no atypia in 76 (63.4%) cases. We evaluated immunohistochemical p53 expression in 7 atypical cases, 37 reactive atypical cases, and in 10 of those without atypia and in 10 endometrioid carcinoma cases. We noted no staining in cases with atypia, reactive atypia and without atypia while 3 cases of endometrioid carcinoma had positive staining for p53. We concluded that prominent nucleolus and angulation of nuclear contour could be added to criteria of atypia that were mentioned before in the literature. In our study, even though p53 expression could not be shown with immunohistochemical methods in atypical endometriotic cases; it can not be determined that atypical endometriosis lesions are not premalignant. Still, endometriosis cases should be evaluated carefully by the pathologist for foci of cytological atypia and it should be kept in mind that malignant transformation might occur in these atypical endometriosis cases.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças Ovarianas
/
Genes p53
/
Proteína Supressora de Tumor p53
/
Endometriose
/
Células Epiteliais
/
Mutação
Tipo de estudo:
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Female
/
Humans
Idioma:
En
Revista:
Pathol Oncol Res
Assunto da revista:
NEOPLASIAS
/
PATOLOGIA
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Turquia
País de publicação:
CH
/
SUIZA
/
SUÍÇA
/
SWITZERLAND