The urinary bladder: An extremely rare location of pediatric XXXX .

@entity1 @entity5 @entity150 @entity521 @entity980
@entity5 in the urinary bladder are rare with a high prevalence of @entity980 . A 15-month-old @entity1 was referred to the authors' center because of a @entity150 . Imaging studies disclosed a solid pelvic mass in the dome of the bladder confirmed by a cystoscopy. Surprisingly, the biopsy done during this procedure confirmed a @entity521 with a favorable Shimada classification. This @entity5 had no bad prognostic factors. But, vessel compression and local infiltration led to delayed surgery, and neoadjuvant chemotherapy was initiated. After chemotherapy, a complete surgical resection was accomplished. Currently, this @entity1 is in complete continuous remission. Only 5 other cases have been reported. Thus, urinary @entity521 seems to be a very rare @entity5 , but it should be considered in the differential diagnoses of @entity150 .
