General poor condition, fever and abdominal distension.
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Abnormal marked dilatation of the transverse as well as the proximal part of the left side of the colon with loss of haustral pattern. The diameter of the transverse colon measures 84 mm. The ascending colon displays thick walls.
Moderate amount of abdominal free fluid. No abnormal fluid-fluid levels. Normal opacification of the portal vein, no abnormal intraluminal gas. No abnormal gas under the diaphragm.
Abnormal oedema of the anterior and posterior abdominal walls more obvious at the level of the groin.
Toxic megacolon usually presents with fever, tachycardia and leukocytosis. Other manifestations include diarrhoea, abdominal pain, rectal bleeding, vomiting, disturbed conscious level and may be hypotension.