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P1.14 - Thymoma/Other Thoracic Malignancies (Not CME Accredited Session) (ID 946)
- Event: WCLC 2018
- Type: Poster Viewing in the Exhibit Hall
- Presentations: 1
- Coordinates: 9/24/2018, 16:45 - 18:00, Exhibit Hall
P1.14-15 - Prevalence of Mediastinal Tumors Using Low-Dose Spiral Computed Tomography in Healthy Population (ID 11262)
16:45 - 18:00 | Author(s): Yuri Yanagihara
Background: Compared with lung tumors, mediastinal tumors occur less frequently, but the precise incidence of mediastinal tumors in healthy populations is still unknown. Chest radiographic screening is a commonly used conventional method for the detection of thoracic tumors. However, early phase detection of mediastinal tumors is difficult due to the location of these tumors. Using low-dose spiral computed tomography (LDCT), this study aimed to investigate the precise incidence of mediastinal tumors, including that of small early phase masses that cannot be detected by radiography.a9ded1e5ce5d75814730bb4caaf49419 Method
Methods: Among people who underwent medical check-ups consecutively for 8 years (from April 2010 to March 2018) at our institution, those who also underwent LDCT were enrolled in this study. In total, this study included 3,414 individuals. The presence of mediastinal tumor in these individuals was investigated.4c3880bb027f159e801041b1021e88e8 Result
Results: Thirty-two cases of mediastinal tumor (0.9%) were detected using LDCT, of which 20, 5, 4, and 3 were anterior, superior, middle, and posterior mediastinum tumors, respectively; this was a higher prevalence than that reported in our country (0.1%-0.8%). Of the 32 cases, 17 were further examined, and finally, in some of these cases, the tumors were successfully surgically resected. The remaining 15 cases were followed-up periodically owing to the presence of small benign nodular lesions. Among the 32 cases, tumors of only 3 cases were detected using chest radiography.8eea62084ca7e541d918e823422bd82e Conclusion
Conclusion: The prevalence of mediastinal tumor is higher than that previously reported in our country. Compared with chest radiography, LDCT contributes to the early phase detection of mediastinal tumors.
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