Similar to ileal NETs, they are frequently argentaffins with ECs and produce serotonin and substance P. 70% are located at the end of the appendix and are smaller than 2 cms.
Como en el íleon, más frecuentemente son argentafines, con CE que producen serotonina y sustancia P. La mayoría 70% se ubica en la punta del apéndice y son menores a 2 cms.