<prompt> All of the following about Gastrointestinal carcinoid tumors are true, Except -Small intestine and appendix account for almost 60 of all gastrointestinal carcinoid5 year survival for carcinoid tumors is 60Rectum is sparedAppendicial carcinoids are more common in females than males  <response>: Ans. is c i.e., Rectum is spared Rectum is not spared, but is infact a common site for carinoid tumor.About other options:o 5 year survival for carcinoid tumors is 60 Sabiston writes-44 Carcinoid tumors have the best prognosis of all small bowel tumors, whether the disease is localized or metastatic. Resection of a carcinoid tumor localized to its primary site approaches a 100 survival rate. Five-year survival rates are about 65 among patients with regional disease and 25 to 35 among those with distant metastasis.o Appendicial carcinoids are more common in females than males Appendicial carcinoids are more common in females. Two to three cases of appendecial carcinoids are female.- Sleisenger and Fordtrans Gastrointestinal and Liver Disease 8e p609o Small intestine and appendix account for almost 60 of all gastrointestinal carcinoid Data from various books vary but as far as the question goes this can be taken to be true as option 4c is definitely wrong. In GIT small intestine and the appendix are the most common sites. Infact small intestine is the 2nd most common site in body after bronchus. 