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  • Title: Spontaneous hepatic artery pseudoaneurysm rupture as a first presentation of polyarteritis nodosa.
    Author: Verigou EA, Skajaa N, Tanwar H, Chief Consultant & Clinical Director Urgent and Emergency Services EKHUFTOn behalf of.
    Journal: BMJ Case Rep; 2024 Jun 27; 17(6):. PubMed ID: 38937262.
    Abstract:
    A man in his 70s presented with a sudden onset stabbing back pain radiating to the chest and pre-syncopal symptoms. He underwent urgent investigations, including a CT angiogram aorta which did not reveal any abnormalities within the thorax, abdomen or pelvis and no cause of symptoms was identified. After being discharged, he re-presented 2 days later with syncopal episodes, abdominal pain and a significant drop in haemoglobin levels. This time, a CT mesenteric angiogram showed two hepatic artery pseudoaneurysms and a large haemoperitoneum. Following a hepatic artery embolisation, a workup showed that the likely cause of the pseudoaneurysms was a rare first presentation of polyarteritis nodosa. This case highlights the importance of considering the possibility of an aneurysmal rupture, especially when common causes of an acute abdomen have been excluded, and not relying on previous negative investigations to exclude pathology, as the outcomes can be detrimental.
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