J Korean Soc Radiol.  2019 Sep;80(5):837-848. 10.3348/jksr.2019.80.5.837.

Significant Abnormalities Other than Lung Cancer in Korean Lung Cancer CT Screening

• Yoon SH
• Hong J
• Hwang EJ
• Kim H
• Lim HJ
• Suh YJ
• Kim HY
• Goo JM

• KMID: 2459010
• DOI: http://doi.org/10.3348/jksr.2019.80.5.837

Abstract

A low-dose chest CT is performed for early detection of lung cancer, but the CT scan frequently shows several incidental abnormalities. Identification of the incidental findings may enable early detection of diseases other than lung cancer, thereby improving the survival of the individual undergoing screening. However, insignificant incidental abnormalities may cause unnecessary additional examination and costs. It is crucial for radiologists to appropriately comprehend and report significant incidental abnormalities other than lung cancer for successful implementation of the national lung cancer screening program in Korea.

MeSH Terms

Early Detection of Cancer
Incidental Findings
Korea
Lung Neoplasms*
Lung*
Mass Screening*
Tomography, X-Ray Computed

Figure

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  Fig. 1. Visual grading of emphysema. A. Trace centrilobular emphysema (circle), involving less than 0.5% of the lung zone. B. Mild centrilobular emphysema, involving 0.5–5.0% of the lung zone. C. Moderate centrilobular emphysema, involving over 5% of the lung zone. D. Confluent emphysema. E. Advanced destructive emphysema with vascular distortion.

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  Fig. 2. Representative images of interstitial lung abnormalities. A. Transverse CT in the supine position shows a mild degree of reticular opacities in the dependent portions of both the lower lobes. B. Subsequently, transverse CT in the prone position confirms that the reticulations and mild ground-glass opacities, rather than gravity-dependent opacities, indicate a mild degree of interstitial abnormality.

Reference

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