Tehran University of Medical Sciences Frontiers in Emergency Medicine 2717-3593 6 3 2022 02 12 e43 e43 Mehdi Farhangian Department of Surgery, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran Hadi Ahmadi-Amoli Department of Surgery, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran Ehsan Rahimpour Department of Surgery, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran 2022 02 07 2022 02 12 The patient was a 71-year-old woman who was referred to the general surgery clinic due to a severe colonic dilatation and a fecal mass that was found in her abdominopelvic CT scan, which was ordered by a nephrologist for approaching her right flank pain. The patient had experienced bloating and progressive abdominal distension in the year prior to the current visit. The last defecation had occurred approximately 20 days prior to the visit, and the last gas passage had occurred the day before the visit.  https://fem.tums.ac.ir/index.php/fem/article/view/956 https://fem.tums.ac.ir/index.php/fem/article/download/956/390