Unusual radiographic images of radiopaque contrast media incidentally observed in intracranial region: two case reports

Year 2018, Volume: 52 Issue: 3, 167 - 169, 01.09.2018

İlkay Peker , Berrin Çelik Umut Pamukçu Özlem Üçok

Abstract

DOI: 10.26650/eor.2018.532

The oil-based contrast medium has extremely
slow clearance rate from cerebrospinal fluid. 
The medium known as myodil or pantopaque or iopenydylate was firstly
introduced in 1944 to be used in myelography, cisternography and
ventriculography. It was commonly used until 1980s but was later replaced by
water-soluble mediums in 1990s because of its complication and sequelae.
Although rare, images of the remnants may still be encountered on radiograms
since its remnants may be seen after six decades. In this article, incidental
radiopaque images in panoramic radiography and cone-beam computed tomography
(CBCT) were presented in two patients whose myelography was taken before
herniated discs’ operation. Unusual incidental radiopacities in intracranial
region were observed on panoramic radiography image of a male and CBCT image of
a female, both of whom underwent myelography more than 30 years ago.
Dentomaxillofacial radiologists should be aware of this radiographic appearance,
should be able to differentiate it from possible pathologies.

Keywords

Long-term adverse effect; contrast media; panoramic radiography; cone-beam computed tomography; diagnostic imaging

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