46. Clinical and paraclinical characteristics of stage I-II laryngeal cancer and dose distribution in intensity-modulated radiotherapy planning
Main Article Content
Abstract
Laryngeal cancer is one of the most common head and neck cancers in Vietnam. Definitive radiotherapy is one of the two main treatment modalities for early-stage laryngeal cancer, offering the advantage of preserving vocal function and causing fewer complications compared to surgery. Intensity-Modulated Radiotherapy (IMRT) is currently the preferred technique in the treatment of laryngeal cancer. This study included 38 patients with stage I–II laryngeal cancer who received definitive IMRT at Hanoi Oncology Hospital and K Hospital from January 2021 to June 2025. The most common age group was 50–70 years (71.1%), and all patients were male. Cigarette smoking was the leading risk factor, found in 97.4% of cases. The glottic region was the most frequent tumor location (97.4%), and 42.1% of patients had tumor extension to the anterior commissure. IMRT provided better dose distribution to the target volume and reduced radiation exposure to critical structures such as the carotid arteries and spinal cord compared to 3D conformal radiotherapy.
Article Details
Keywords
Stage I–II laryngeal cancer, intensity-modulated radiotherapy, clinical characteristics, paraclinical findings
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