**Question:** Type of hemicolectomy done for carcinoma appendix is-

A. Right hemicolectomy
B. Left hemicolectomy
C. Segmental resection
D. Resection and anastomosis

**Core Concept:** Hemicolectomy is a surgical procedure used to treat colorectal cancer, specifically involving the removal of part or a segment of the colon. This procedure is typically performed for tumors located in the right or left side of the colon.

**Why the Correct Answer is Right:** In the case of carcinoma appendix, which is a type of colorectal cancer, the tumor is located on the right side of the colon. Right hemicolectomy (A) is the appropriate choice as it involves the removal of the cecum, ascending colon, and the terminal ileum, ensuring complete excision of the tumor and preventing its spread.

**Why Each Wrong Option is Incorrect:**

B. Left hemicolectomy (option B) is incorrect because the tumor is located on the right side of the colon, not the left side.

C. Segmental resection (option C) is not the correct choice as it does not involve the removal of the entire affected segment of the colon, which may result in incomplete excision of the tumor and potential recurrence.

D. Resection and anastomosis (option D) is not specific enough, as it only mentions the removal of the affected tissue but does not mention the inclusion of the right colon and terminal ileum in the procedure, which is crucial for complete removal of the tumor.

**Why Option A is Right:** Right hemicolectomy (option A) ensures complete excision of the tumor and prevents its spread by removing the cecum, ascending colon, and the terminal ileum. This procedure is crucial for effective treatment of carcinoma appendix, preventing recurrence and improving prognosis.

**Clinical Pearls:**

* For carcinoma appendix, right hemicolectomy is the recommended procedure to ensure complete excision of the tumor and prevent its spread.
* Incomplete excision can lead to recurrence and worsened prognosis, emphasizing the importance of considering the tumor's location when choosing the appropriate surgical approach.

**Correct Answer:** A