Fig. 1
From: The challenging diagnosis and treatment of duodenal diverticulum perforation: a report of two cases
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12876-019-1154-2/MediaObjects/12876_2019_1154_Fig1_HTML.png)
a-b: CT scan of the abdomen, showing free locules of air in the hepatic hilum and the lesser omental sac
From: The challenging diagnosis and treatment of duodenal diverticulum perforation: a report of two cases
a-b: CT scan of the abdomen, showing free locules of air in the hepatic hilum and the lesser omental sac