Monolateral Sialadenitis Following Iodinated Contrast Media Administration for Carotid Artery Stenting

We describe the occurrence of monolateral aseptic sialadenitis following non-iodinated contrast medium (ICM) administration for a carotid artery stenting procedure in a 71-year-old man. The mechanism for iodide-induced sialadenitis may be idiosyncratic or related to toxic accumulation of iodide. The risk for sialadenitis is directly related to serum iodide levels (> 10 mg/100 mL) and inversely related to normal renal function so that in renal impairment, ICM can be eliminated through alternative pathways such as the salivary glands and other excretory organs.