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
Bosman FT, Carneiro F, Hruban RH, Theise ND (Eds.)
WHO Classification of Tumours of the Digestive System.
International Agency for Research on Cancer: Lyon 2010
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