Tamiladu & Pondicherry Chapter of Indian Radiological and Imaging Association
Promoting the study and practice of Diagnostic Radiological Imaging Modalities in the states of Tamilnadu and Pondicherry
Answer to Quiz No. 16/2015 dated 14 June 2015
Colonic Pseudo-obstruction (Ogilvie's syndrome)
Findings:
Abdomen xray shows dilated large bowel filled with gas and feces. CT shows marked dilatation of large bowel without any transition point or mechanically obstructing lesion.
Discussion:
Colonic pseudo-obstruction is characterized by massive dilatation of the cecum and right colon on abdominal X-ray. It is a type of megacolon, sometimes referred to as "acute megacolon," to distinguish it from toxic megacolon. Patients present with a sudden painless enlargement of the proximal colon accompanied by distension. Bowel sounds are normal or high-pitched. It is a potentially fatal condition.
References:
Acute Intestinal Pseudo-Obstruction (Ogilvie’s Syndrome). Maloney N, Vargas HD. Clinics in Colon and Rectal Surgery. 2005;18(2):96-101. doi:10.1055/s-2005-870890.
Acute pseudo-obstruction of the colon (Ogilvie's syndrome). An analysis of 400 cases. Vanek VW, Al-Salti M. Dis Colon Rectum. 1986 Mar;29(3):203-10.
Krajewski K, Siewert B, Eisenberg RL. Colonic dilation. AJR Am J Roentgenol. 2009;193 (5): W363-72. doi:10.2214/AJR.09.3353
Contributed By:
Dr. Jeyabharathi, DMRD, FRCR, Dr. Iyappan Ponnuswamy MD, FRCR, Dr. Susila Krishnan DMRD, DNB, FRCR, Dr. Ramesh Mohandoss D Ortho, MD
CADIR - Center for Advanced Diagnostic and Interventional Radiology, Kauvery Hospital, Alwarpet, Chennai 600 018
Findings:
Abdomen xray shows dilated large bowel filled with gas and feces. CT shows marked dilatation of large bowel without any transition point or mechanically obstructing lesion.
Discussion:
Colonic pseudo-obstruction is characterized by massive dilatation of the cecum and right colon on abdominal X-ray. It is a type of megacolon, sometimes referred to as "acute megacolon," to distinguish it from toxic megacolon. Patients present with a sudden painless enlargement of the proximal colon accompanied by distension. Bowel sounds are normal or high-pitched. It is a potentially fatal condition.
References:
Acute Intestinal Pseudo-Obstruction (Ogilvie’s Syndrome). Maloney N, Vargas HD. Clinics in Colon and Rectal Surgery. 2005;18(2):96-101. doi:10.1055/s-2005-870890.
Acute pseudo-obstruction of the colon (Ogilvie's syndrome). An analysis of 400 cases. Vanek VW, Al-Salti M. Dis Colon Rectum. 1986 Mar;29(3):203-10.
Krajewski K, Siewert B, Eisenberg RL. Colonic dilation. AJR Am J Roentgenol. 2009;193 (5): W363-72. doi:10.2214/AJR.09.3353
Contributed By:
Dr. Jeyabharathi, DMRD, FRCR, Dr. Iyappan Ponnuswamy MD, FRCR, Dr. Susila Krishnan DMRD, DNB, FRCR, Dr. Ramesh Mohandoss D Ortho, MD
CADIR - Center for Advanced Diagnostic and Interventional Radiology, Kauvery Hospital, Alwarpet, Chennai 600 018
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