
Figure 1
Doppler ultrasound showing a 5 mm anechoic micro-cavitary formation on the posterior wall of the gallbladder, presenting arterial flow, suggestive of a pseudo-aneurysm of the cystic artery.

Figure 2
(A) Axial CT angiography confirming the diagnosis of cystic artery pseudoaneurysm (arrow). (B) Coronal T2-weighted MRI image showing an obstructing clot in the common bile duct (arrow).

Figure 3
Histological examination and macroscopic appearance showing a pseudoaneurysmal rupture of the cystic artery protruding into the gallbladder lumen in a chronically inflammatory environment.
