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Proliferative activity in placentas with hydropic change and hydatidiform mole as detected by Ki-67 and proliferating cell nuclear antigen immunostaining.

Abstract：

:Complete hydatidiform moles (CHM) and partial hydatidiform moles (PHM) represent different clinicopathologic entities. To obtain prognostic and therapeutic information about both entities, it is important that pathologic classification be as accurate as possible. The distinction of molar pregnancy and an abortus with hydropic changes (AHC) can sometimes be very difficult. The acquisition of 2 antibodies against nuclear antigens expressed in cycling cells, Ki-67 and proliferating cell nuclear antigen (PCNA), allow the study of trophoblastic proliferation in CHM, PHM, and AHC. The purpose of this study is to determine whether immunocytochemical stains can help in the distinction between those entities. All materials were obtained by curettage from 95 patients with hydropic villi evident on microscopic examination. The 95 cases included 33 cases of CHM, 42 cases of PHM, and 20 cases of AHC. In the case of the Ki-67 staining, the mean was much lower in the ACH group (8.7%) than in the PHM group (65.3%) or in the CHM group (84.6%). In the case of PCNA staining, the mean differences among the 3 groups (AHC, 23.1%; PHM, 80%; and CHM, 89.2%) were all statistically significant. On the basis of the means and the Gaussian results, it appears that the Ki-67 distribution gives a better separation among the 3 groups. In conclusion, proliferative activity is an additional useful parameter for evaluation of molar pregnancies and hydropic changes, with Ki-67 staining allowing better separation than PCNA staining does.

journal_name

Am J Clin Pathol

journal_title

American journal of clinical pathology

authors

Ostrzega N,Phillipson J,Liu P

doi

10.1093/ajcp/110.6.776

subject

Has Abstract

pub_date

1998-12-01 00:00:00

pages

776-81

issue

6

eissn

0002-9173

issn

1943-7722

journal_volume

110

pub_type

杂志文章

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