Appendecectotomy either open or laproscopic is commonest surgical procedure,in .4 to 1% of cases it showes carcinoid tumor,in 90% of cases its on tip of appendix and 90% cases it less than 1 cm in size and more in young adults. carcinoid tumoris a neuro endocrine tumor and derives from primitive stem cells in gut its not only limited to gut may present in lungs,mediastenum,thymus,liver,bronchus,prostate and kidneys,its having high potential to metastasise. carcinoid tumors can be 1,forgut tumor ..in liver,pancrease,and upto duodenum these argentaffin negative secretes less serotonin but high 5 hydroxy tryptophan,histamine and polypeptides high potentiol for metastasis. 2.
mid gut tumor according anatomy ,these are argentaffin positive, but high in serotonin,5ht,prostaglandin and p substance but bone metstasis negative 3. hind gut tumors less vasoactive and low in metastasis. in…
