Prevotella intermedia infection causing acute and complicated aortitis-A case report.

•Prevotella intermedia is a rare causative agent for aortitis and has, to the best knowledge of the authors, not been described in the literature before.•Patients with a suspected aortitis should be referred to a vascular center with experience in the medical and surgical treatment of this specific and potentially mortal disease.•Acute aortitis is a challenging clinical entity, which should be managed with a multidisciplinary team.