ĐẶC ĐIỂM HÌNH ẢNH UNG THƯ PHỔI GIAI ĐOẠN SỚM TRÊN CẮT LỚP VI TÍNH ĐA DÃY Ở BỆNH NHÂN ĐƯỢC PHẪU THUẬT TẠI BỆNH VIỆN PHỔI TRUNG ƯƠNG

Abstract

SUMMARY

Objective: This study aimed to describe the multidetector computed tomography (MDCT) characteristics of the chest in patients with early-stage lung cancer who underwent surgical treatment at the National Lung Hospital in 2025. Materials and Methods: A retrospective cross-sectional study was conducted on 89 patients with early-stage lung cancer (stages IA–IIIA) who underwent contrast-enhanced chest MDCT before surgery and had histopathological confirmation following tumor resection or lobectomy at the National Lung Hospital in 2025. Data were analyzed using SPSS version 20.0. Results: On MDCT, lesions were most frequently located in the right upper lobe (38.2%). The mean lesion diameter was 2.26 ± 1.0 cm, with tumors measuring >1 to ≤2 cm accounting for the largest proportion (42.7%). Solid nodules/masses were the predominant imaging pattern (71.9%), while part-solid lesions accounted for 16.9%. Lobulated margins (60.7%) and spiculated margins (37.1%) were the most common morphological features. Following contrast administration, 59.6% of tumors demonstrated marked enhancement (≥20 HU). On PET/CT, 71.9% of lesions showed a maximum standardized uptake value (SUVmax) ≥2.5. Most mediastinal lymph nodes had a short-axis diameter ≤10 mm (93.3%) and exhibited benign morphological features (97.8%). Conclusion: Early-stage lung cancer that is still surgically treatable is characterized by solid nodules/mass (79.1%); followed by semi-solid nodules (16.9%). Tumors are found in the upper lobes of both lungs (51.7%), are small in size (1-2 cm, 42.7%), and have polyarc and spiky borders (97.8%). Most solid nodules show very strong contrast enhancement (59.6%), while the solid cores of semi-solid nodules mostly do not enhance or enhance poorly. Mediastinal lymph nodes are small, with the smallest transverse diameter being <10 mm in 93.3%. This study provides additional data on the identifying features of early-stage lung cancer nodules on multislice CT scans, contributing to early diagnosis and guiding the surgical treatment of lung tumors.