title: Spurious leptomeningeal enhancement on immediate post-operative MRI for paediatric brain tumours.
abstract: Immediate post-operative MRI has been recommended as an accurate and robust method to assess residual brain tumour. Early enhancement at the resection margin and in the dura is well recognized, but we describe two cases of enhancement in the basal cisterns on immediate post-operative MRI that resolved on follow-up. The underlying cause of the enhancement remains to be elucidated, but it should be recognized that leptomeningeal enhancement may occur after surgery and that this does not necessarily imply tumour spread.
authors.affiliation: Department of Radiology, Royal Hallamshire Hospital, Glossop Road, Sheffield, S10 2JF, UK. Elysa.Widjaja@sth.nhs.uk
authors.forename: Elysa
authors.initials: E
authors.lastname: Widjaja
authors.forename: Daniel J A
authors.initials: DJ
authors.lastname: Connolly
authors.forename: Sylvia
authors.initials: S
authors.lastname: Gatscher
authors.forename: John
authors.initials: J
authors.lastname: McMullen
authors.forename: Paul D
authors.initials: PD
authors.lastname: Griffiths
mesh_terms: D001706:Biopsy; D001932:Brain Neoplasms / Q000473:pathology* / Q000601:surgery; D003287:Contrast Media; D005260:Female; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D018365:Neoplasm, Residual / Q000175:diagnosis*; D018242:Neuroectodermal Tumors, Primitive / Q000473:pathology* / Q000601:surgery
chemical_list: D003287:Contrast Media