Figure 1. Plain abdominal radiography showing pneumobilia (red arrow)

From

Gallstone Ileus-A Case Report with Review of the Literature

Christos Konstantinidis, Aleksandros Hamzin, Ioannis Stefanidis

American Journal of Medical Case Reports. 2015, 3(5), 126-129 doi:10.12691/ajmcr-3-5-2