Incidence of Colorectal Carcinoma in Patients Undergoing Appendectomy After Age of 40 Years in Sulaimani Teaching Hospital

Background: The appendiceal disease is one of the most common reasons for emergency hospital admission, and appendectomy is one of the most frequently performed emergency procedures. Obstruction of the appendiceal lumen is the usual cause of acute appendicitis. However, in elderly patients, it may also be due to a neoplasm of appendix, cecum, or even colorectal carcinoma and appendicitis can be its first manifestation. Of all the gastrointestinal tract malignancies, colorectal carcinoma is the most common one. Objective: To find the incidence of the carcinoma of colon in patients above 40 years of age who underwent appendectomy. Methods: Two groups of patients studied from Sulaimani Teaching Hospital and Kurdistan Center for Gastroenterology and Hepatology. Both groups underwent colonoscopy and one group only had appendectomy. Non-appendectomized group used as control. A 213 patients from a total of 545 patients studied from October 1st, 2018 to September 30th, 2019. Results: More than half of the patients (54%) had normal colonoscopy, others showed internal hemorrhoid (15.5%), polyp (15%), sigmoid mass (0.9%), rectosigmoid mass (0.5%) and gastrointestinal stromal tumor (0.5%). Histopathology results were tubular adenoma with low-grade dysplasia (36.4%), hyperplastic polyps (34.1%), adenocarcinoma (2.3%), and familial adenomatous polyposis (2.3%). Conclusion: The incidence of colorectal carcinoma is 4.76% in the studied group whom underwent appendectomy after 40 years of age. Keywords: Acute appendicitis, adenocarcinoma, colonoscopy, colorectal cancer, mucinous neoplasm of appendix, appendectomy. Citation: Faraj FH, Abdulla AA, Abdulqader GMR, Mardan ME, Mohammed SA, Mahmood MMS, Hussein SA, Shareef WOH. Incidence of colorectal carcinoma in patients undergoing appendectomy after age of 40 years in Sulaimani Teaching Hospital. Iraqi JMS. 2021; 19(1): 24-32. doi: 10.22578/IJMS.19.1.4