Carcinoid Tumor
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![Appendix_Carcinoid15.jpg](/slides-13/slides/Appendix_Carcinoid15.jpg)
Comments:
Carcinoid tumors are composed of a monotonus population of cells arranged in a variety of architectural patterns, including nested (insular), trabecular, acinar, and tubular. Multiple patterns often coexist within the same tumor (as shown here). There is no prognostic implications to these patterns.