A 54-year-old female with a prior diagnosis of atypical hyperplasia/endometrial intraepithelial neoplasia and she was managed by progestin for 6 months, here is an follow-up biopsy:

How would you sign out the case?
A: Benign weakly proliferative endometrium
B: Residual hyperplasia
C: Residual atypical hyperplasia
D: Progestin effect, negative for hyperplasia or atypia
Answer
Case credit: UCSD Pathology
Author: Wangpan Jackson Shi, MD
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