What is the typical distribution of pseudomembranous colitis?
The whole colon is usually affected.
When this typical distribution is not seen, which side of the colon is more frequently involved?
Ascending and transverse colon.
Residual contrast (from the CT scan performed the previous day) is seen in the colon and outlines very prominent mucosal thickening / oedema (thumb-printing). No evidence of colonic dilatation or free gas.