Figure 1
From: The significance of ectopic crypt formation in the differential diagnosis of colorectal polyps
Histologic findings of traditional serrated adenoma (TSA). (A), TSA showing a protuberant growth pattern and serrated architecture (hematoxylin and eosin; original magnification × 40). (B), TSA composed of tall columnar cells with diffuse serration and abundant eosinophilic cytoplasm. Note the abundant ectopic crypts (hematoxylin and eosin; original magnification × 200).