title: Case report: Pontine haemorrhage following iohexol lumbar myelography.
abstract: A case of pontine haemorrhage following lumbar myelography using iohexol is described. Stress, inducing transient hypertension during the procedure, with superimposed neurotoxicity from contrast medium (iohexol) is suggested as a possible mechanism. No brain stem lesion was seen on the initial brain CT scan, possibly because of the high attenuation of the contrast medium in the subarachnoid space. A delayed CT brain scan demonstrated the pontine haemorrhage and was necessary to confirm the diagnosis.
authors.affiliation: Department of Neurology, Chang Gung Memorial Hospital, Taipei, Taiwan.
authors.forename: Y F
authors.initials: YF
authors.lastname: Yeh
authors.forename: S K
authors.initials: SK
authors.lastname: Lin
authors.forename: C Y
authors.initials: CY
authors.lastname: Sung
authors.forename: C C
authors.initials: CC
authors.lastname: Chu
authors.forename: Y R
authors.initials: YR
authors.lastname: Wu
mesh_terms: D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology*; D003287:Contrast Media / Q000009:adverse effects*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007472:Iohexol / Q000009:adverse effects*; D008875:Middle Aged; D009192:Myelography / Q000009:adverse effects*; D011149:Pons / Q000000981:diagnostic imaging*; D013129:Spinal Puncture / Q000009:adverse effects; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D007472:Iohexol