Clinically, colon cancer can manifest as chronic abdominal pain, transit disorders such as constipation or diarrhea, internal digestive hemorrhage, which may be rectorragia or moelenas. General signs such as asthenia, weight loss, and disgust for some foods can be found [4]. In the serie of Benamr et al. [2], abdominal pain was found in 76% of cases, transit disorders in 53%, digestive haemorrhages in 36%, weight loss of more than 5 kg in 70% of cases; Anemia was found in 50% and an abdominal mass in 22% of cases. Complications such as peritonitis or occlusion may be indicative of the disease as the cases of our observations. It was the same in 10% of the serie of Benamr et al. [2]. Complications reached 42% of the Ele et al. [3]. Indeed, 15% of colon cancers are revealed by occlusion and 8% of colon cancers are revealed by peritonitis. Apart from complications, a colonoscopy with a biopsy should be used to diagnose colon cancer and to plan its management [4,6]. Emergency surgery is an independent mortality factor for this colorectal surgery and occlusion and peritonitis are independent prognostic variables of colon cancer [7]. In our observations, the ulceronecrotic tumor of the right colon, the ulceronecrotic tumor of the cecum and the cecal tumor of the ileo-colic intussusception presented to us in Figure 1, benefited from a right hemicolectomy with an ileo-transverse anastomosis at the same time. Нe post-operative follow-up was favorable