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ETHYL 10-(4-IODOPHENYL)UNDECANOATE

6V3I57K9UL

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Status:

Possibly Marketed Outside US

Class (Stereo):

CHEMICAL (RACEMIC)

Targets:

Conditions:

Spinal cord tumors

Iophendylate (Pantopaque (in USA) or Myodil, formerly manufactures by Glaxo Laboratories (London,UK) was commonly used from the 1940s until the late 1980s for myelography, cisternography, and ventriculography; the use of oil-based contrast agents suc...

h as Myodil has been discontinued, and images of intradural oil-based contrast are rarely encountered at present. In 1942 Van Wagenen (a neurosurgical colleague of Warrens, at the University of Rochester) identified Iophendylate as causing chemical meningitis in 30 patients where "space-displacing masses within the spinal canal were suspected". Iophendylate has been shown to be both a radiographic and magnetic resonance (MR) contrast agent in patients with suspected cord abnormalities who underwent MR examination following myelography. The iophendylate appears as a linear band of high signal intensity along the dependent portion of the spinal canal on MR images obtained with a repetition time of 500 msec and an echo time of 30 msec. Recently was published report, where depicted a unique case of posteriorly located subdural trapped Myodil, about three decades after myelography. The clinical picture of that case highlighted that such a complication didn’t carry the risk of arachnoiditis and could remain silent for several decades. Although Iophendylate is not used for evaluation of spinal disease anymore in the modern diagnostic era, its former use and its intrathecal persistence makes its recognition in MR imaging important. That case emphasized the necessity of awareness about these rare features which continue to present even decades after abandonment of oil-based myelography.

BENZENEDECANOIC ACID, 2-IODO-.IOTA.-METHYL-, ETHYL ESTER

5153M06QEA

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Status:

Possibly Marketed Outside US

Class (Stereo):

CHEMICAL (RACEMIC)

Targets:

Conditions:

Spinal cord tumors

Iophendylate (Pantopaque (in USA) or Myodil, formerly manufactures by Glaxo Laboratories (London,UK) was commonly used from the 1940s until the late 1980s for myelography, cisternography, and ventriculography; the use of oil-based contrast agents suc...

h as Myodil has been discontinued, and images of intradural oil-based contrast are rarely encountered at present. In 1942 Van Wagenen (a neurosurgical colleague of Warrens, at the University of Rochester) identified Iophendylate as causing chemical meningitis in 30 patients where "space-displacing masses within the spinal canal were suspected". Iophendylate has been shown to be both a radiographic and magnetic resonance (MR) contrast agent in patients with suspected cord abnormalities who underwent MR examination following myelography. The iophendylate appears as a linear band of high signal intensity along the dependent portion of the spinal canal on MR images obtained with a repetition time of 500 msec and an echo time of 30 msec. Recently was published report, where depicted a unique case of posteriorly located subdural trapped Myodil, about three decades after myelography. The clinical picture of that case highlighted that such a complication didn’t carry the risk of arachnoiditis and could remain silent for several decades. Although Iophendylate is not used for evaluation of spinal disease anymore in the modern diagnostic era, its former use and its intrathecal persistence makes its recognition in MR imaging important. That case emphasized the necessity of awareness about these rare features which continue to present even decades after abandonment of oil-based myelography.

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