XXXX : a case series and review of the literature.

@entity808 @entity1 @entity5
OBJECTIVES: To present our experience with four @entity808 treated by surgical excision and review the current literature. @entity808 are rare, benign @entity5 and infrequently present to the urologist. METHODS: From 1997 through 2002, the charts of 164 @entity1 with a diagnosis of benign retroperitoneal soft tissue mass were reviewed. Of those, four had a pathologic diagnosis of @entity808 . RESULTS: Three of the 4 @entity1 were @entity1 , with a median age of 54 years (range 46 to 80). The average @entity5 size was 13.7 cm (range 8.8 to 20). All @entity1 underwent magnetic resonance imaging, computed tomography, or ultrasonography, and 3 of the 4 @entity1 underwent a computed tomography-guided fine needle aspiration biopsy (all were either inaccurate or inconclusive). All @entity1 underwent complete @entity5 excision with free margins of resection and tolerated surgery without any complications. None of the @entity1 have had any evidence of recurrence at a mean follow-up of 26 months (range 10 to 48). CONCLUSIONS: @entity808 are difficult to diagnose preoperatively. Computed tomography-guided fine needle aspiration biopsy does not appear to provide an accurate preoperative diagnosis. The surgical approach should focus on complete excision of the mass. @entity1 undergoing complete surgical resection tend to do well without evidence of early recurrence.
