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File:IPLab7Carcinoid1.jpg|This is a low-power photomicrograph of the surgical specimen showing basophilic and eosinophilic areas delimiting areas of tumor infiltration.
File:IPLab7Carcinoid1x.jpg|This is a higher-power photomicrograph of the surgical specimen showing the mucosa is normal and the tumor cells are in the submucosa.
File:IPLab7Carcinoid2IPLab7Carcinoid3b.jpg|This is a higher-power photomicrograph of the surgical specimen showing nests of tumor cells (arrows). File:IPLab7Carcinoid3IPLab7Carcinoid4b.jpg|This is a high-power photomicrograph of the surgical specimen showing the tumor's growth pattern--cells form discrete islands, trabeculae, and glands.
File:IPLab7Carcinoid4.jpg|This is a high-power photomicrograph of the surgical specimen showing the cellular morphology. The tumor cells are monotonously similar with scant, pink, granular cytoplasm and a round-to-oval stippled nucleus. As in most carcinoid tumors, there is minimal variation in cell and nuclear size, and mitoses are infrequent or absent.
File:IPLab7Carcinoid8x.jpg|This low-power photomicrograph shows how the tumor cells have invaded into the muscularis of the bowel (arrows).
