Although the gold standard in the management of kidney tumors is surgical treatment, thermal ablation methods are a viable therapeutic option for patients with small (<4 cm) renal masses who are poor ...surgical candidates. The aim of this study was to compare the technical success, primary efficacy and complication rate of percutaneous radiofrequency and microwave ablation in the treatment of small renal masses. A retrospective analysis of consecutive patients with small renal masses treated with radiofrequency or microwave ablation between December 2017 and January 2022 was conducted. Response to the ablative therapy was assessed on contrast-enhanced computed tomography examination after 3 months. Ablations of 44 kidney lesions were performed in 43 patients. Sixteen lesions were treated with radiofrequency and 28 with microwave ablation. Both methods were associated with high technical success (100%). Primary efficacy rates of radiofrequency and microwave ablation were 81.3% and 89.3%, respectively. Ablation-related complications were noted only in the patients treated with microwave ablation (18.5%), all of them being low grade (Clavien-Dindo 1 and 2). Radiofrequency and microwave ablation exhibited comparable efficacy in the treatment of small renal masses. Microwave ablation was associated with a comparatively higher number of complications.Although the gold standard in the management of kidney tumors is surgical treatment, thermal ablation methods are a viable therapeutic option for patients with small (<4 cm) renal masses who are poor surgical candidates. The aim of this study was to compare the technical success, primary efficacy and complication rate of percutaneous radiofrequency and microwave ablation in the treatment of small renal masses. A retrospective analysis of consecutive patients with small renal masses treated with radiofrequency or microwave ablation between December 2017 and January 2022 was conducted. Response to the ablative therapy was assessed on contrast-enhanced computed tomography examination after 3 months. Ablations of 44 kidney lesions were performed in 43 patients. Sixteen lesions were treated with radiofrequency and 28 with microwave ablation. Both methods were associated with high technical success (100%). Primary efficacy rates of radiofrequency and microwave ablation were 81.3% and 89.3%, respectively. Ablation-related complications were noted only in the patients treated with microwave ablation (18.5%), all of them being low grade (Clavien-Dindo 1 and 2). Radiofrequency and microwave ablation exhibited comparable efficacy in the treatment of small renal masses. Microwave ablation was associated with a comparatively higher number of complications.
We aimed to determine diagnostic accuracy of CT-guided bone lesion biopsy for the confirmation of bone metastases in patients with breast cancer and assessment of hormone receptor status in ...metastatic tissue. A total of 56 female patients with breast cancer that underwent CT-guided biopsy of suspected bone metastasis were enrolled in this retrospective study. Three different techniques were employed to obtain samples from various sites of skeleton. Collectively, 11 true negative and 3 false negative findings were revealed. The sensitivity of CT-guided biopsy for diagnosing bone metastases was 93.6%, specificity was 100% and accuracy was 94.8%. Discordance in progesterone receptor status and complete concordance in estrogen receptor status was observed. Based on our single-center experience, bone metastasis biopsy should be routinely performed in patients with breast cancer and suspicious bone lesions, due to the impact on further treatment.
Background
Nipple discharge is one of the most common symptoms related to the breast, but it is a presenting feature of breast cancer in 5%–12% of women.
Aims
The purpose of this study was to ...determine the diagnostic performance of digital breast tomosynthesis (DBT) in the evaluation of patients with nipple discharge and to compare it with mammography (MMG), ultrasound (US), and magnetic resonance imaging (MRI).
Methods and Results
This retrospective study included 53 patients with nipple discharge. All patients underwent DBT, and results were compared to MMG, breast US, and MRI. Radiological findings for each method were categorized according to BI‐RADS classification: categories 1–2 were considered negative and categories 3–5 positive. If a tissue specimen was obtained, the final diagnosis was established based on the results of histopathological analysis; otherwise, a clinical follow‐up was required for at least 2 years to confirm benign radiological findings. Measures of diagnostic accuracy of DBT, MMG, US, and MRI were calculated and compared.
Results
Final histopathological analysis revealed six malignant breast lesions, all of which were detected in patients with pathologic nipple discharge. DBT and MRI exhibited high sensitivity (100%) and high negative predictive value (100%) for the detection of breast cancer in patients with nipple discharge. DBT showed higher specificity compared to MRI (82.9% vs. 61.9%). Sensitivity and specificity of MMG were 83.3% and 76.6%, respectively. Breast US was determined to have a sensitivity of 66.7% and specificity of 57.5%.
Conclusion
DBT exhibited higher specificity than MRI at the same level of sensitivity and negative predictive value. Therefore, the use of DBT should be considered as an alternative to MRI in the assessment of patients with nipple discharge.
Cilj. Svrha ovog rada jest utvrditi kliničku vrijednost dodatnoga ultrazvučnog (UZV) pregleda u evaluaciji sumnjivih lezija dojke inicijalno otkrivenih na pregledu magnetskom rezonancijom (MR) u ...pacijentica s
invazivnim karcinomom dojke. Ispitanici i metode. Ovo retrospektivno istraživanje provedeno je analizom radioloških nalaza 277 bolesnica s karcinomom dojke kojima je u sklopu preoperativne obrade učinjen pregled MR-om na Kliničkom zavodu za dijagnostičku i intervencijsku radiologiju Kliničkoga bolničkog centra Zagreb. Na pregledu MR-om otkrivene su nove lezije koje su dodatno analizirane na ciljanom, dodatnom UZV pregledu. Učinjena je biopsija širokom iglom ili citološka punkcija UZV-om otkrivenih sumnjivih lezija kako bi se učinila patohistološka, odnosno citološka analiza. Uspoređena je korelacija MR i UZV nalaza s obzirom na tip i veličinu lezije. Rezultati. Preoperativnim MR pregledom otkrivene su 33 nove lezije. Dodatnim UZV pregledom verificirano je 25 lezija (75,8%), od kojih je 10 lezija (40,0%) pokazivalo benigne karakteristike. Zbog suspektnih obilježja kod 15 lezija (60,0%) učinjena je patohistološka ili citološka analiza. Među lezijama koje su ultrazvučno verificirane ukupno je otkriveno devet (36,0%) karcinoma i 16 lezija (64,0%) benignih karakteristika. Nije zabilježen niti jedan slučaj karcinoma tijekom dvogodišnjeg praćenja lezija benignih karakteristika. Postotak korelacije UZV i MR nalaza značajno je veći za lezije koje su se na MR-u prikazale kao tvorbe u usporedbi s korelacijom za zone imbibicije (p<0,05). Za fokus imbibicije nije zabilježena niti jedna korelacija. Veličina tvorbi i zona imbibicije ne utječe na uspjeh korelacije. Zaključak. Sumnjive lezije otkrivene MR-om mogu se analizirati dodatnim UZV pregledom, odnosno postotak korelacije UZV i MR nalaza je visok, pri čemu tvorbe pokazuju viši postotak korelacije od zona imbibicije. Za tvorbe i zone imbibicije veličina nema utjecaja na uspjeh korelacije. Dodatni UZV koristan je dodatak dijagnostičkoj obradi pacijentica s MR-om otkrivenom lezijom u dojci te se njegovom uporabom mogu izbjeći nepotrebne biopsije.
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