Imaging of skull-base cephalocoeles and cerebrospinal fluid leaks.
Skull-base cephalocoeles and cerebrospinal fluid (CSF) leaks may be congenital, spontaneous, or secondary. A classification of congenital lesions is formulated and the imaging features are illustrated. The concept of spontaneous skull-base CSF leaks and the significance of aberrant arachnoid granulations in imaging these patients are explored. The majority of secondary lesions relate to trauma; however, other potential causes of secondary skull-base cephalocoeles and CSF leaks are discussed. Imaging evaluation in these clinical scenarios may be complex and the role of each imaging method is reviewed.
Connor
S E J
SE
Neuroradiology Department, Kings College Hospital, Denmark Hill, London, UK. Steve.Connor@kch.nhs.uk
D002558:Cerebrospinal Fluid Otorrhea / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002559:Cerebrospinal Fluid Rhinorrhea / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006259:Craniocerebral Trauma / Q000134:cerebrospinal fluid / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004677:Encephalocele / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D012886:Skull / Q000002:abnormalities / Q000293:injuries / Q000473:pathology*; D014057:Tomography, X-Ray Computed / Q000379:methods