Do you understand EIN and can you recognize it?

| May 4, 2009

Pathologists are encouraged to check out the Endometrial Intraepithelial Neoplasia consensus exercise. Note the quiz closes on September 30.

Endometrial Intraepithelial Neoplasia (EIN) is the histopathologic presentation of premalignant endometrial disease. It is not just a renaming of an old diagnostic entity, “complex hyperplasia with atypia”, but is a refined set of diagnostic criteria based on epidemiologic and genetic data.

This consensus exercise is designed to both train users to recognize precancers and to test the robustness of the subjective criteria among a broad range of users.

If you are unfamiliar with EIN diagnostic terminology and criteria, read this review article ( or peruse this website ( before you begin.

You will be provided with a link to the answers and a discussion when you complete the quiz, and may return to this page to see how you scored relative to other participants when the quiz closes on September 30.

EIN Fact Sheet

Category: Pathology News

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