This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
25 year old patient presented with mass in . iliac fossa, which after laparotomy was found to be carcinoid of 2.5 cm in diameter. What will be the next step in management? 
Select and explain. 
A. Segmental resection, B. Rt. hemicolectomy, C. Appendicectomy, D. Do yearly 5 HIAA assay
B: Rt. hemicolectomy
Answer: B: Rt. hemicolectomy 
Explanation: Appendicectomy is the treatment of choice in appendiceal carcinoids < 1 cm in size and tumor size 1-2 cm located at the tip. Rt hemi colectomy is indicated when: Tumor is >2 cm in size Tumor of size 1-2 cm involving base of appendix Tumor of size 1-2 cm involving caecal wall or mesoappendix. Lymph nodes are involved (metastasis present). Also know Treatment for carcinoids of small intestine Carcinoid < 1cm in situ --------- segmental small bowel resection Carcinoid > 1cm in size or multiple tumors or regional lymph node metastasis ------ wide excision of bowel along with its mesentery. Carcinoid of terminal ileum-------- . hemicolectomy Ref: Sabiston 18/e, Page 1345; Schwaz 9/e, page 1088; bailey & Love 24/e, Page 1217.