True about Ogilvie syndrome are all except
Ogilvie syndrome is the acute dilation of the colon in the absence of any mechanical obstruction in severely ill patients. Colonic pseudo-obstruction is characterized by massive dilatation of the cecum (diameter > 10 cm) and right colon on abdominal X-ray.
It is caused by mechanical obstruction of the colon
It involves entire \/ pa of the large colon
It occurs after previous surgery
It occurs commonly after narcotic use
G.I.T