Fig. 2From: Nontraumatic perforation of the small intestine caused by true primary enteroliths associated with radiation enteritis: a case reportFollow-up abdominal plain CT performed 10 days after onset. a Coronal and b transaxial images reveal that the abdominal free space, including gas and the drainage tube (yellow arrow), communicates with the intraluminal space of the small intestine, which contains a slightly high-density spherical structure (white arrowhead) in the vicinity, via the perforation site (red arrowheads)Back to article page