Inflammatory Stroma of Lymphoepithelioma-like Carcinoma of the Cervix: Immunohistochemical Study of 3 Cases and Review of the Literature.
Int J Gynecol Pathol
; 37(5): 482-487, 2018 Sep.
Article
em En
| MEDLINE
| ID: mdl-28985196
ABSTRACT
The aim of this study was to characterize the inflammatory infiltrate of the lymphoepithelioma-like carcinoma, a variant of squamous cell carcinoma clinically associated with a good prognosis. Immunohistochemistry was used to characterize 3 cases of lymphoepithelioma-like carcinoma in the uterine cervix, diagnosed over a period of 3 yr. The patients were between 30 and 50 yr old. Their cervical smears had shown atypical squamous cells of unknown significance or high-grade squamous intraepithelial lesions, and the initial cervical biopsy showed high-grade cervical intraepithelial neoplasia (CIN3) or squamous cell carcinoma. All patients underwent a Wertheim operation, 2 of which were preceded by a cervicectomy. Microscopically, all tumors were characterized by poorly defined sheets of undifferentiated squamous cells with a syncytial pattern and a dense background of infiltrating lymphocytes. Immunohistochemical analysis revealed that the lymphocytes were predominantly CD3 and CD8 T cells. The tumor lobules contained isolated CD8 T cells, whereas CD4 T cells and CD20 B cells surrounded the tumor lobules. CD56 NK cells and CD79 B cells were scattered in the tumor tissue. An in situ hybridization staining for Epstein-Barr encoding region was negative but all cases were immunohistochemically positive for P16. Follow-up varied between 2 mo and 2.7 yr. All 3 patients were disease free. Lymphoepithelioma-like carcinoma of the uterine cervix is a variant of squamous cell carcinoma, known for its better prognosis. The good prognosis of this tumor is potentially explained by the high levels of infiltrating CD8 T cells.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Carcinoma de Células Escamosas
/
Neoplasias do Colo do Útero
/
Linfócitos do Interstício Tumoral
/
Linfócitos T CD8-Positivos
/
Microambiente Tumoral
Tipo de estudo:
Prognostic_studies
Limite:
Adult
/
Female
/
Humans
/
Middle aged
Idioma:
En
Revista:
Int J Gynecol Pathol
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Bélgica