PT - JOURNAL ARTICLE AU - Sato, T.S. AU - Moritani, T. AU - Hitchon, P. TI - Occipital Intradiploic CSF Pseudocyst: An Unusual Complication of a Ventriculoperitoneal Shunt Malfunction AID - 10.3174/ajnr.A1320 DP - 2009 Mar 01 TA - American Journal of Neuroradiology PG - 635--636 VI - 30 IP - 3 4099 - http://www.ajnr.org/content/30/3/635.short 4100 - http://www.ajnr.org/content/30/3/635.full SO - Am. J. Neuroradiol.2009 Mar 01; 30 AB - SUMMARY: We report a rare and unique complication of ventriculoperitoneal (VP) shunt malfunction. A progressively expansile, CSF-containing occipital intradiploic cyst developed in a 15-year-old boy at the site of cystoperitoneal shunt draining a Dandy-Walker cyst; the shunt was placed when the boy was 4 years old. A proposed pathogenesis of the lesion is discussed.