A Case of Isolated Hepatic Artery Vasculitis

Introduction Isolated hepatic artery vasculitis is an exceptionally rare clinical entity, with only a few cases described in the literature. It often presents with non-specific abdominal symptoms and biochemical abnormalities, making the diagnosis challenging. Case Presentation We report the case of a 62-year-old man who presented with intermittent epigastric and subcostal pain, elevated inflammatory markers, and liver biochemical abnormalities. Imaging demonstrated diffuse wall thickening and inflammatory change affecting the common and lobar hepatic arteries which was consistent with vasculitis. Extensive infective and autoimmune work-up was largely unremarkable. The patient was treated with corticosteroids and azathioprine, with subsequent clinical, biochemical and radiological resolution. Conclusion This case highlights the importance of considering hepatic artery vasculitis in the differential diagnosis of abdominal pain with unexplained inflammatory and liver biochemical abnormalities, and demonstrates a favourable response to immunosuppressive therapy.