{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"American Association for Cancer Research"}],"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T03:08:09Z","timestamp":1747192089985,"version":"3.40.5"},"posted":{"date-parts":[[2023,4,1]]},"reference-count":0,"publisher":"American Association for Cancer Research (AACR)","license":[{"start":{"date-parts":[[2023,4,1]],"date-time":"2023-04-01T00:00:00Z","timestamp":1680307200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>&lt;p&gt;Morphological features after mifepristone treatment. A-D, Images illustrating increased stromal tissue (A), thin and scarce collagen fibers, and increased stromal matrix (arrow; B), an area of tissue remodeling (C), and an area of increased differentiation (D) observed in the surgical samples (S) compared to the respective core needle biopsies (CNB). E, Image illustrates an area of necrosis (dotted arrow) together with a differentiated structure (black arrow) in a surgical sample. F, Cells with Alcian blue+ (left), PAS+ (middle) and MUC-1+ (immunohistochemistry; right) vacuoles observed in a mifepristone-treated tumor. 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