Cystic artery pseudoaneurysms are a rare complication of traumatic injuries, postbiliary surgery or more rarely cholecystitis. Colour Doppler US, CECT and CTA can all be used to diagnose pseudoaneurysms. In addition, DSA can be used to confirm the presence of a pseudoaneurysm and allows therapeutic intervention using less invasive angiographic techniques, particularly in those patients who are not surgical candidates.

From the manuscript

Successful Transcatheter Arterial Embolisation of a Cystic Artery Pseudoaneurysm Secondary to Calculus Cholecystitis: A Case Report

Abstract
Pseudoaneurysms of the cystic artery secondary to calculus cholecystitis are rare. In this report we describe a case of an elderly female who presented with abdominal pain, pyrexia, anaemia and jaundice. She had known chronic cholecystitis, but was not considered a suitable surgical candidate. Contrast enhanced computed tomography (CECT) demonstrated a probable aneurysm within the gallbladder fossa. The patient proceeded to digital subtraction angiography (DSA), which confirmed an aneurysm arising from the cystic artery and was subsequently managed with transcatheter arterial embolisation using coils. This case report reviews the diagnosis and management of this rare complication.