Cover legend: Upper panel: (A) Lymphoglandular complex like carcinoma, haphazard glands confined to lymphoid tissue. (B) Lymphoglandular complex like carcinoma, complex glands, gland angulation, single cells, stromal response. Lower panel:(A) Demonstrates an SSL-D (on the right) blending with a flatter, low-grade non-serrated epithelium (left). It should be noted that the lamina propria and muscularis mucosae are intact. Similarly, in (B) shows flat to undulating low-grade mucinous epithelium with intact lamina propria, reactive lymphoid follicles and retained muscularis propria. In both instances the dysplastic mucinous epithelium does not show serrations. Both these sessions should be designated as mucinous adenoma/‘pre-LAMN’. LAMN, low-grade appendiceal mucinous neoplasms; SSL-D, sessile serrated lesions with dysplasia.