Bührer, EliasEliasBührerAlberts, Ian LeighIan LeighAlbertsChrist, Lisa AlexandraLisa AlexandraChristÖzdemir, BernaBernaÖzdemir2024-10-262024-10-262024https://boris-portal.unibe.ch/handle/20.500.12422/176527We report a 64-year-old patient with melanoma receiving ipilimumab and nivolumab therapy who presented with a periaortic soft tissue mass around the abdominal aorta on restaging fluorodeoxyglucose positron emission tomography/computed tomography imaging. Clinical, laboratory, and radiologic findings resulted in a diagnosis of immune checkpoint inhibitor-related periaortitis. Periaortitis is a rare disease presenting with fibro-inflammatory tissue around the aorta and may lead to serious complications. Immune checkpoint inhibitors were discontinued, and the patient was treated with glucocorticoids, leading to a complete resolution of the periaortitis. To our knowledge, this is only the third reported case of immune checkpoint inhibitor-related periaortitis.en600 - Technology::610 - Medicine & healtharticle10.48350/1956863857929610.57187/s.3631