Plasma cells in chronic endometritis are easily identified when stained with syndecan-1.
BACKGROUND: Chronic endometritis has been observed in 3-10% of women with irregular uterine bleeding who undergo endometrial biopsy. The diagnosis of chronic endometritis rests on the recognition of plasma cells in endometrial tissue that may show a prominent spindle cell stromal component, and is frequently difficult to date. Syndecan-1 is a cell-surface proteoglycan that is expressed on the cell surface of plasma cells. DESIGN: Eighteen endometrial curettage cases with the diagnosis of chronic endometritis and 25 endometrial curettage cases of dysfunctional uterine bleeding, in females under the age of thirty-five in whom no other histopathologic changes were noted, were reviewed for the presence of plasma cells. Sections were then stained with syndecan-1. RESULTS: All of the chronic endometritis cases showed easily visible syndecan-1 staining of plasma cell membranes. None of the cases of dysfunctional uterine bleeding showed presence of plasma cells in either the hematoxylin and eosin stained or syndecan-1 stained sections. CONCLUSIONS: In cases of suspected chronic endometritis in which no plasma cells can be found on hematoxylin and eosin stained slides, syndecan-1 may be an effective adjunct in the identification of plasma cells and thus aid in the diagnosis of chronic endometritis.[1]References
- Plasma cells in chronic endometritis are easily identified when stained with syndecan-1. Bayer-Garner, I.B., Korourian, S. Mod. Pathol. (2001) [Pubmed]
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