TY - JOUR T1 - Difficulties in diagnosing congenital posterior fossa fluid collections after shunting procedures. JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 653 LP - 656 VL - 8 IS - 4 AU - S M Wolpert AU - R M Scott AU - V M Runge AU - E S Kwan Y1 - 1987/07/01 UR - http://www.ajnr.org/content/8/4/653.abstract N2 - The differential diagnosis of retrocerebellar fluid collections in infants is important because of the prognostic implications. Usually the diagnoses are easy; however, shunting of the lateral ventricles or of the fluid collections may alter the appearance of the lesions, precluding accurate diagnosis. Under such circumstances a careful study of all the sequential radiologic studies is necessary. ER -