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Local recurrence of renal cell carcinoma successfully treated with fusion imaging-guided percutaneous thermal ablation.

ABSTRACT: Image-guided thermal ablations are increasingly applied in the treatment of renal cancers, under the guidance of ultrasound (US) or computed tomography (CT). Fusion imaging allows exploitation of the strengths of all imaging modalities simultaneously, eliminating or minimising the weaknesses of every single modality. We present a case of a 68-year-old patient treated using US/CT fusion imaging to guide radiofrequency ablation for local recurrence of renal cell carcinoma undetectable by ultrasound.

SUBMITTER: Camisassi N

PROVIDER: S-EPMC7373648 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Local recurrence of renal cell carcinoma successfully treated with fusion imaging-guided percutaneous thermal ablation.

Camisassi Nicola N Mauri Giovanni G Vigna Paolo Della PD Bonomo Guido G Varano Gianluca Maria GM Maiettini Daniele D Orsi Franco F

Ecancermedicalscience 20200713

Image-guided thermal ablations are increasingly applied in the treatment of renal cancers, under the guidance of ultrasound (US) or computed tomography (CT). Fusion imaging allows exploitation of the strengths of all imaging modalities simultaneously, eliminating or minimising the weaknesses of every single modality. We present a case of a 68-year-old patient treated using US/CT fusion imaging to guide radiofrequency ablation for local recurrence of renal cell carcinoma undetectable by ultrasoun ...[more]

PMID: 32728386

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Project description:Percutaneous thermal ablation (PTA), resection, and liver transplantation are the standard curative options for hepatocellular carcinoma (HCC). Liver transplantation yields the best long-term outcomes but is limited by graft shortage. Thus, patients with ≤3-cm HCC are primarily treated by PTA even though recurrence is frequent and may occur outside transplant criteria. Data on non-transplantable recurrence (NTR) following PTA are lacking, however. We therefore investigated the incidence and predictors of NTR among 213 potentially transplantable patients (cirrhosis, 93%; Child-Pugh A, 98.6%; alcohol-related disease, 62%) with ≤3-cm HCC(s) treated by PTA, to stratify them according to their NTR risk and to improve treatment allocation. During follow-up (median: 41.2 months), NTR occurred in 18.3% (alpha-fetoprotein [AFP] model) and 23% (Milan) patients. NTR prediction with competing-risk analysis and internal validation revealed AFP > 100 ng/ml (subdistribution hazard ratio: 7.28; p < 0.001) and prior HCC (subdistribution hazard ratio: 3.77; p = 0.002) as independent predictors (Harrell's C: 0.76). Based on this model using the AFP score (equally predictive within Milan criteria), patients were stratified into three NTR risk categories: HCC-naïve with AFP < 100 ng/ml (low risk, n = 108 of 213), non-HCC naïve with AFP < 100 ng/ml (intermediate risk, n = 92 of 213), AFP ≥ 100 ng/ml (high risk, n = 13 of 213), among whom 9.3% (3.7% [Milan]), 22.8% (25% [Milan]), and 61.5% (38/5% [Milan]) presented NTR (p < 0.001). Median recurrence-free survival was 4.6, 14.5, and 43.4 months, respectively, in high-risk, intermediate-risk, and low-risk categories (p < 0.001). Median overall survival, which was 19.1 months in high-risk patients, was not reached otherwise (p < 0.001). Conclusion: Overall, PTA of ≤3-cm HCC incurs a low NTR risk. Simple and noninvasive predictors (HCC naivety, AFP) accurately stratified patients' risk of NTR, and should help to improve treatment allocation. Patients with AFP ≥ 100 ng/ml have a high risk of NTR, poor recurrence-free survival, and overall survival. Further studies evaluating preemptive transplantation or adjuvant/neoadjuvant strategies are highly needed in this small patient subset.

Project description:ObjectivesNeck recurrence of papillary thyroid cancer (PTC) is frequently detected after initial surgery. The management of these lesions may include rescue surgery (RS) or minimally invasive techniques in selected patients, but comparative studies evaluating the effectiveness and safety of these techniques are lacking. In this paper, we compared ultrasound-guided ethanol ablation (EA) in selected patients to RS in a matched cohort.MethodsWe retrospectively compared 41 patients and 41 matched PTC patients without known distant metastases, who underwent ultrasound-guided EA or RS (matched reference group), who had 63 and 75 thyroid bed and/or lymph node confirmed PTC recurrences during a median follow-up of 72.8 and 89.6 months, respectively. The primary outcome was time until structural recurrence, compared using Kaplan-Meier survival curves. The secondary outcomes included time until biochemical recurrence, plasma thyroglobulin (Tg) levels, American Thyroid Association (ATA) response-to-therapy categories by the last available observation, and treatment-derived complications in each group.ResultsNo significant differences were found between the EA and RS groups for time until structural recurrence (log-rank test, P=0.94). The time until biochemical recurrence was also similar (P=0.51); and the plasma Tg concentration reduction and proportions of patients in the ATA reclassification categories were also similar. A significantly higher proportion of patients in the RS group presented treatment-derived complications (29.27% vs. 9.75%, P<0.05).ConclusionIn this retrospective analysis, the treatment of PTC neck recurrence with EA in selected patients was comparable to RS in a matched reference group for the long-term risk of structural or biochemical relapse, but with a lower risk of treatment-derived complications. These.Resultssupport the effectiveness and safety of this minimally invasive technique in the management of selected patients with recurrent PTC.

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Local recurrence of renal cell carcinoma successfully treated with fusion imaging-guided percutaneous thermal ablation.

Publications

Local recurrence of renal cell carcinoma successfully treated with fusion imaging-guided percutaneous thermal ablation.

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