Nhận xét một số đặc điểm lâm sàng, hình ảnh cắt lớp vi tính lồng ngực và mô bệnh học bệnh nhân u tuyến ức được điều trị bằng phẫu thuật nội soi lồng ngực có robot hỗ trợ tại Bệnh viện Chợ Rẫy

To comment some clinical chracteristics, computed tomography imaging features and histology of patients with thymoma underwent thymectomy by robotic assisted thoracoscopic surgery. Patients and methods: Patients with thymoma underwent thymectomy by robotic assisted thoracoscopic surgery from 1/2020 to 12/2023 at Cho Ray hospital. Results: The ratio of female and male was 1.39 :1, the mean age was 49.42 ± 13.46 (range, 17 -72 years). Nineteen patients (44.2%) were affected by myasthenia gravis. Preoperative Perlo – Osserman class was I in 4 patients, IIA in 11 patients and IIB in 4 patients. Tumor size ≥ 5cm was in 22 patients (51.2%) and < 5cm was in 21 patients (48.8%), the mean diameter of the resected tumors was 5.08cm. The proportion of central tumor was highest (48.8%), the right side (20,8%) and the left side (30.2%). The enhanced degree was mainly medium or high (72.1%), there was only 2 patients (4.65%) with foci and 1 patient with invasion to surround organs. World Health Organization histology was lipothymoma (14%), type A (16.3%), type AB (30.2%), type B1 (9.3%), type B2 (20.9%), type B3 (4.7%) and thymic carcinoma (4.7%). Masaoka stage I (41,9%), IIA (34.9%), IIB (11.6%) and III (11.6%). There was relation between histology, Masaoka stage and contrast-enhanced degree on chest CT scans. Conclusion: The mean diameter of resected tumors in patients with thymoma underwent thymectomy by robotic assisted thoracoscopic surgery was 5.08cm, the majority was early stage (Massaoka I and II). The higher tumors have risk of malignancy, the higher were contrast-enhanced degree and the later Masaoka.