Total colectomy with anastomosis is a suitable procedure for treating left-sided colonic obstruction provided that pelvic floor is adequate. Total colectomy has low mortality, acceptable morbidity and good quality of life. The success of the surgery depends on the selection of patients.

In this paper we report a case of malignant peritoneal mesothelioma, a rare abdominal tumour. A 72-year-old male with a medical history of heart disease presented to our Clinic because of pain in the right half of the abdomen. Diagnostic procedures, including clinical and laboratory examination, X-ray, ultrasonography and computed tomography, revealed a tumour in the right lower quadrant of the abdomen. The approximate size of the tumour size at initial detection was 7 cm. During the pre-operative procedure an evident growth of the tumour was noticed, indicating exploratory laparotomy. Intra-operative findings revealed a large tumour of the anterolateral abdominal wall, involving the greater omentum. Tumour resection was performed, as well as resection of the portion of the anterolateral abdominal wall and omentectomy. Postoperative immunohistochemical analysis revealed malignant peritoneal mesothelioma.

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The prognostic factors influencing the outcome of surgery for colorectal carcinoma were defined. Patients with pathohistological finding of Astler-Coller-Dukes stage D, stage IV according to the TNM classification (T1-4, N0-2, M1) and poorly differentiated adenocarcioma have statistically highly significant mortality during the perioperative course of the disease.

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