Magnetic Resonance Imaging (MRI) plays a pivotal role in evaluating treatment response following radiation-based therapies for hepatocellular carcinoma (HCC). As radiation modalities such as stereotactic body radiotherapy (SBRT) and transarterial radioembolization (TARE) gain prominence, understanding the underlying mechanisms of radiation-induced cellular senescence is essential for accurate interpretation of imaging. The physiological changes of radiation treatment manifest as altered diffusion characteristics and delayed regression of enhancement and tumor volumes on MRI, challenging conventional response criteria. Herein, functional and temporal imaging biomarkers are necessary. However, current imaging strategies lack standardization and robust validation, underscoring the need for prospective studies to correlate MRI findings with treatment outcomes. This review synthesizes emerging evidence on MRI-based evaluation of radiation-treated HCC, explores the physiological rationale linking senescence to imaging phenotypes, and advocates for optimized imaging protocols and criteria to enhance post-treatment surveillance and therapeutic decision-making.

Pulmonary malignancies encompassing both primary lung cancer and metastatic lesions are a leading cause of cancer-related mortality globally. Percutaneous thermal ablation of primary and metastatic lung tumors using radiofrequency ablation, microwave ablation, or cryoablation has emerged as an established minimally invasive treatment modality for selected patients unsuitable for surgery or requiring lung preservation. Although most lung ablation complications are self-limiting, some adverse events may result in long-term morbidity or mortality. Post-ablation pneumothorax has the highest reported incidence, with pooled incidences of 37–44%, although rates may vary according to patient cohorts and study definitions. As indications for percutaneous thermal ablation of pulmonary lesions expand to include complex lesions or higher-risk patients, the prevention and management of procedure-related complications remain central to safe clinical practice. Although prior reviews have described the techniques, oncological outcomes, and complication profiles of image-guided lung ablation, less emphasis has been placed on integrating practical complication prevention and management strategies throughout the periprocedural workflow. This narrative review aims to synthesize various complication prevention and management strategies for percutaneous thermal ablation of both primary and metastatic pulmonary lesions. The review focuses on both common and rare complications, and various aspects of complication prevention such as patient/lesion selection, procedural planning, and anesthesia/respiratory control. A comprehensive understanding of complication profiles and mitigation strategies is essential to optimize procedural safety, guide patient selection, and establish ablative techniques as a pillar in multidisciplinary thoracic oncology care.