Visceral artery aneurysms (VAAs) are rare, with high morbidity and mortality. Correct identification of VAAs on abdominal imaging is critical; misdiagnosis and failure to treat predisposes the patient to significant risk of rupture and death. In this case report, we present a case of a patient with a primary giant hepatic artery aneurysm, initially mistaken for a pancreatic tumour.A 70-year-old male suffered 3 episodes of epigastric pain over 3 months. Each episode involved the sudden onset of moderately severe epigastric pain lasting 3 hours. There were no identifiable triggers. The patient had a history of atrial fibrillation, treated with rivaroxaban. He had had no previous abdominal surgery or pancreatitis. Physical examination findings were unremarkable. Biochemical investigations revealed no abnormalities.Abdominal ultrasound suggested a 5 Â 4 Â 5 cm complex mass in the pancreatic head. Abdominal CT with IV contrast was performed (Fig. 1). The initial radiology report described a pancreas mass with a dilated hepatic artery nearby.HPB multidisciplinary review of the images diagnosed a partially thrombosed, giant hepatic artery aneurysm measuring 4 Â 5 cm, arising just distal to the common hepatic artery origin. The patient