Clinical Significance of Chest CT Scan for Previous Heavy Smoker

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Clinical Significance of Chest CT Scan for Previous Heavy Smoker

Yoshinobu KATO1, Hiroshi BANDO1,2,3*, Yoshikane KATO1, Katsunori OGURA1, Hisako YAMASHITA1
1Kanaiso Hospital, Tokushima, Japan
2Tokushima University / Medical Research, Tokushima, Japan
3Japan Low Carbohydrate Diet Promotion Association, Kyoto, Japan

Corresponding Author: Hiroshi BANDO, MD, PhD, FACP ORCID iD
Address: Tokushima University /Medical Research, Nakashowa 1-61, Tokushima 770-0943, Japan.
Received date: 10 April 2022; Accepted date: 13 May 2022; Published date: 21 May 2022

Citation: Kato Y, Bando H, Kato Y, Ogura K, Yamashita H. Clinical Significance of Chest CT Scan for Previous Heavy Smoker. Asp Biomed Clin Case Rep. 2022 May 21;5(2):63-67.

Copyright © 2022 Kato Y, Bando H, Kato Y, Ogura K, Yamashita H. This is an open-access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.

Keywords: Computed Tomography (CT), Abdominal Aortic Aneurysm (AAA), Lung Cancer Screening, Low-Dose CT (LDCT), Smoking

Abbreviations: CT: Computed Tomography; AAA: Abdominal Aortic Aneurysm; LDCT: Low-Dose CT

Abstract

The patient is an 83-year-old male, who smoked 20-40 cigarettes daily during 20-75 years and quit after that. In March 2021, he revealed normal chest X-P and was explained to take chest computed tomography (CT) next year. In April 2022, chest X-P was unremarkable, but CT showed a small solid abnormal shadow in the upper left lung region nearby aortic arch and abdominal aortic aneurysm (AAA) in the upper abdomen. Almost lung cancer cases are found in current smokers or ex-smokers. Using CT, lung cancer screening shows a 20-26% decrease in cancer death. Consequently, Low-Dose CT (LDCT) for smokers would be recommended.