Latest Insights on Adrenal Metastases Management
Oncologists often face difficult decisions when selecting the most effective adrenal metastases treatment for their patients. Recently, a multicenter cohort study evaluated the clinical effectiveness of thermal ablation, surgery, and radiotherapy. This research analyzed outcomes from 496 patients across multiple institutions to determine the safest and most successful approach. Specifically, researchers compared local control and survival rates between these established locoregional therapies.
Tumor Size and Adrenal Metastases Treatment Success
The study findings suggest that tumor size plays a critical role in treatment efficacy. Researchers discovered that surgery and radiotherapy provide significantly better local progression-free survival (LPFS) than thermal ablation overall. However, a subgroup analysis revealed a fascinating trend for smaller metastatic lesions. Specifically, all three treatment modalities showed similar effectiveness for tumors smaller than 5 cm. Consequently, interventional radiologists might consider ablation a strong candidate for smaller tumors. Furthermore, clinicians must evaluate individual tumor characteristics before choosing a specific intervention.
Overall Survival and Surgical Advantages
Surgery remains the most effective option regarding long-term patient outcomes. The data demonstrated that surgical intervention leads to significantly better overall survival compared to both ablation and radiotherapy. Therefore, eligible candidates should prioritize surgical resection whenever possible to maximize their survival prospects. Additionally, the researchers developed predictive nomograms using LASSO Cox regression models. These tools help doctors estimate survival probabilities more accurately for individual patients. Thus, surgical resection maintains its status as the gold standard for survival in suitable metastatic cases.
Safety, Complications, and Treatment Costs
Patient safety and financial burden are essential factors in clinical decision-making. Thermal ablation exhibited the lowest complication rates among all three locoregional therapies. Moreover, this procedure cost significantly less than surgery or radiotherapy. Alternatively, patients with multiple comorbidities might benefit more from the minimally invasive nature of ablation. While surgery offers better survival, the increased risk of complications requires careful patient selection. Instead, doctors should balance the high survival benefit of surgery against the safety and lower cost of thermal ablation.
Frequently Asked Questions
Q1: Which therapy provides the best overall survival for adrenal metastases?
Surgery offers the best overall survival compared to radiotherapy and thermal ablation, particularly for patients who are healthy enough for an invasive procedure.
Q2: Is thermal ablation effective for large adrenal tumors?
For tumors larger than 5 cm, surgery and radiotherapy typically provide better local control. However, for tumors smaller than 5 cm, ablation is just as effective as the other options.
Q3: Which treatment has the lowest risk of complications?
Thermal ablation has the lowest complication rates and the lowest treatment costs, making it a safe and affordable option for selected patients.
References
- Xie L et al. Comparative effectiveness of thermal ablation, radiotherapy, and surgery for adrenal metastases: a multi-institutional cohort study. Eur Radiol. 2026 Mar 13. doi: 10.1007/s00330-026-12380-3. PMID: 41824040.
- Hasegawa T et al. Unresectable adrenal Metastases: Clinical Outcomes of Radiofrequency Ablation. Radiology. 2015 Nov;277(2):584-93. doi: 10.1148/radiol.2015141940.
- Ierardi AM et al. Outcomes following minimally invasive imagine-guided percutaneous ablation of adrenal glands. Gland Surg. 2020 Apr;9(2):332-343. doi: 10.21037/gs.2020.03.13.