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Hum Pathol. 1994 Jul;25(7):715-22.

Necrotizing funisitis and herpes simplex infection of placental and decidual tissues: study of four cases.

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  • 1Division of Pediatric Pathology, James Whitcomb Riley Hospital for Children, Indiana University School of Medicine, Indianapolis.

Abstract

Necrotizing funisitis (NF) is a macroscopically and microscopically distinctive pattern of umbilical cord inflammation recently heralded as presumptive of congenital syphilis. Four nonsyphilitic cases are presented in which herpes simplex virus (HSV) 2 antigen was demonstrated in the placenta by immunohistochemistry. The clinicopathologic findings in one case, including HSV 2 antigen in amniotic epithelium, subamniotic chorion, and Wharton jelly, indicate that NF was caused by chronic ascending primary HSV 2 infection, whereas those of the other three cases with HSV 2 Ag confined to decidual cell clusters suggest that NF was caused by chronic ascending bacterial infection and that latent endometrial HSV 2 infection was fortuitous. We conclude that (1) NF is caused by protracted inflammation of a structure whose normal anatomy precludes removal of inflammatory debris; (2) no single pathogen causes NF; and (3) NF is strongly associated with latent endometrial HSV 2 infection, which should be sought in all instances. Although latent HSV 2 endometrial infection may be more prevalent than currently recognized, we speculate that its strong association with NF may be more than causal; whereas the usual ascending bacterial infection leads to labor before NF has had sufficient time to develop, latent endometrial HSV 2 infection may alter local paracrine factors and delay parturition for the time sufficient to permit NF, a morphological hallmark of chronicity, to become apparent.

PMID:
8026831
[PubMed - indexed for MEDLINE]
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