title: Thoracic spinal iophendylate-induced arachnoiditis mimicking an intramedullary spinal cord neoplasm. Case report.
abstract: Iophendylate (Pantopaque or Myodil) was commonly used from the 1940s until the late 1980s for myelography, cisternography, and ventriculography. Although such instances are rare, several different long-term sequelae have been described in the literature and associated with intrathecal iophendylate. The authors describe an unusual case of arachnoiditis caused by residual thoracic iophendylate imitating an expansile intramedullary lesion on magnetic resonance images obtained 30 years after the initial myelographic injection.
authors.affiliation: Department of Neurosurgery, Division of Neuroradiology, Tufts-New England Medical Center, Boston, Massachusetts 02111, USA. shwang@tufts-nemc.org
authors.forename: Steven W
authors.initials: SW
authors.lastname: Hwang
authors.forename: Rafeeque A
authors.initials: RA
authors.lastname: Bhadelia
authors.forename: Julian
authors.initials: J
authors.lastname: Wu
mesh_terms: D001100:Arachnoiditis / Q000139:chemically induced* / Q000175:diagnosis* / Q000601:surgery; D003287:Contrast Media / Q000009:adverse effects; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007430:Intraoperative Care; D007481:Iophendylate / Q000009:adverse effects*; D007796:Laminectomy; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D019635:Neurosurgical Procedures; D013117:Spinal Cord Compression / Q000473:pathology; D013120:Spinal Cord Neoplasms / Q000175:diagnosis* / Q000601:surgery; D013904:Thoracic Vertebrae / Q000187:drug effects* / Q000473:pathology* / Q000601:surgery
chemical_list: D003287:Contrast Media; D007481:Iophendylate