OBJECTIVE: We performed a retrospective review of imaging-guided radiofrequency ablation of solid @entity703 . MATERIALS AND METHODS: Since May 2000, 35 @entity5 in 20 @entity1 have been treated with radiofrequency ablation. The size range of treated @entity5 was 0.9-3.6 cm (mean, 1.7 cm). Reasons for @entity1 referrals were a prior partial or total nephrectomy (nine @entity1 ), a comorbidity excluding nephrectomy or partial nephrectomy (10 @entity1 ), or a treatment alterative to nephron-sparing surgery (one @entity1 who refused surgery). @entity5 were classified as exophytic, intraparenchymal, or central. Sixteen @entity1 had 31 lesions that showed serial growth on CT or MR imaging. Of these 16 @entity1 , four @entity1 with 10 lesions had a history of @entity1358 , and two @entity1 with 11 lesions had a history of @entity280 . Four @entity1 had incidental solid masses, two of which were biopsied and shown to represent @entity1358 , and the remaining two masses were presumed malignant on the basis of imaging features. Successful ablation was regarded as any lesion showing less than 10 H of contrast enhancement on CT or no qualitative evidence of enhancement after IV @entity2287 contrast-enhanced MR imaging. RESULTS: Of the 35 @entity5 , 22 were exophytic and 13 were intraparenchymal. Twenty-seven of the 35 were treated percutaneously using either sonography (n = 22) or CT (n = 5). Two @entity1 had eight @entity5 treated intraoperatively using sonography. @entity1 were followed up with contrast-enhanced CT (n = 18), MR imaging (n = 5), or both (n = 5) with a follow-up range of 1-23 months (mean, 9 months). No residual or recurrent @entity5 and no major side effects were seen. CONCLUSION: Preliminary results with radiofrequency ablation of exophytic and @entity703 are promising. Radiofrequency ablation is not associated with significant side effects. Further follow-up is necessary to determine the long-term efficacy of radiofrequency ablation.

Imaging-guided radiofrequency ablation of solid XXXX .

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients', 'patient'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'Tumors', 'tumors'] @entity1358 :: ('MESH:D002292', 'Disease') :: ['renal cell carcinoma'] @entity2287 :: ('MESH:D005682', 'Chemical') :: ['gadolinium'] @entity280 :: ('MESH:D006623', 'Disease') :: ['von Hippel-Lindau disease'] @entity703 :: ('MESH:D007680', 'Disease') :: ['intraparenchymal renal tumors', 'renal tumors']
@entity703 :: (MESH:D007680,Disease) :: ['renal tumors']
