Carcinoid tumours

Small, slow growing neoplasm composed of rounded, oxyphilic, or spindle shaped cells of medium size, with small vesicular nuclei and covered by intact mucosa with a yellow cut surface.neoplastic cells are frequently palisaded at the periphery of the small groups and latter have tendency to infiltrate surrounding tissue. Such neoplasm occur anywhere in the gastrointestinal tract, approximately 90% in the appendix and remainder chiefly in the ileum, but also in stomach, other parts of small intestine, colon and rectum.