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WHO Classification of Tumours
Traditional serrated adenoma


Traditional serrated adenoma (TSA) are usually protuberant or pedunculated, measure less than 1.5 cm in diameter, show features of dysplasia (enlargement, variation of nuclear size and shape, nuclear hyperchromasia, and irregular nuclear polarity), and have eosinophilic cytoplasm with serration
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Bosman FT, Carneiro F, Hruban RH, Theise ND (Eds.)
WHO Classification of Tumours of the Digestive System.
4th Edition
International Agency for Research on Cancer: Lyon 2010

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Li SC, Burgart L (2007)
Histopathology of serrated adenoma, its variants, and differentiation from conventional adenomatous and hyperplastic polyps.
Arch Pathol Lab Med 131: 440-5