Can myelography residues have an incidental finding on panoramic radiography? Two case reports

Abstract

Oil-based contrast medium agents (Iofendylate) are cleared from cerebrospinal fluid very slowly, but it may remain within the tissues of the central nervous system. These substances, which were used for purposes such as myelography, cisternography, and ventriculography approximately 70 years ago and were replaced by water-soluble agents after 30 years, can rarely be detected incidentally. In this report, by presenting the intracranial radiopacities seen in 2 patients, it is aimed to increase awareness that these myeloid residues, which are rarely seen in panoramic radiography, can be diagnosed by clinicians. (C) 2021 The American Association of Oral and Maxillofacial Surgeons.