MRI and MRA Features of a Saccular Mycotic Aneurysm of the Cavernous Carotid Artery Resulting from Invasive Aspergillus Sinusitis

Opportunistic infections are on the rise because of an increasing number of patients with immunosuppression and their prolonged survival [1, 2]. Although invasive aspergillus sinusitis leading to a mycotic aneurysm of the intracavernous carotid artery is increasingly being reported, the magnetic resonance (MR) features supporting their mycotic origin are poorly known. A previous neuroradiological case report already extensively described the magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) findings of a fusiform aneurysm [3]. We now report the case of a saccular mycotic aneurysm involving the cavernous portion of the carotid artery, and discuss the imaging features supporting its mycotic origin.