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Atypical Adenomatous Hyperplasia

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Higher magnification of atypical adenomatous hyperplasia (adenosis) encountered in a transurethral resection specimen. The glands are variable in size and show round, oval, or irregular lumina. The cytoplasm is pale in contrast to the amphophilic cytoplasm usually seen in cancer. The nuclei are not enlarged appreciably and prominent nucleoli are not present. However, approximately 30% of cases of adenosis may show prominent nucleoli.

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