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Int J Clin Exp Pathol. 2012;5(8):762-9. Epub 2012 Oct 1.

Primary peritoneal serous carcinoma: a clinicopathological and immunohistochemical study of six cases.

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  • 1State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center Guangzhou, China.

Abstract

AIMS:

Primary peritoneal serous carcinoma (PPSC) is an unusual neoplasm that has not been properly characterized. To better define the clinicopathological and immunohistochemical features of PPSC, we present 6 such cases.

METHODS:

The 6 patients consisted of one man and 5 women, ranging in age from 45 and 75 years. None of the patients had any history or clinical evidence of tumor elsewhere. The immunohistochemical profile was examined using antibodies against β-catenin, E-cadherin, wnt5a, EGFR, VEGF, vimentin, Ki67, and P53.

RESULTS:

Of all the 6 PPSC cases, 5 cases presented stage IIIC and 1 case presented stage IV. Microscopically, 5 cases were poorly differentiated and 1 was moderately differentiated. All cases showed positive staining for β-catenin, E-cadherin, vimentin, VEGF, P53, and Ki67, 4 cases expressed EGFR, and all cases were consistently negative for wnt5a.

CONCLUSIONS:

We described 6 cases of PPSC with clinicopathological and immunohistochemical features. The findings provide basic knowledge of PPSC.

KEYWORDS:

Primary peritoneal serous carcinoma; epithelial ovarian cancer; serous carcinoma

PMID:
23071858
[PubMed - indexed for MEDLINE]
PMCID:
PMC3466985
Free PMC Article
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