Journal List > J Korean Soc Radiol > v.62(4) > 1086744

TOOLS
Oh, Ahn, Jung, Han, Park, Park, and Kim: Radiologic Findings of Influenza A (H1N1) Pneumonia: Report of Two Cases
Chest Radiology
Case Report

Journal of the Korean Society of Radiology 2010; 62(4): 361-364.

Published online: 30 April 2010

DOI: https://doi.org/10.3348/jksr.2010.62.4.361

Radiologic Findings of Influenza A (H1N1) Pneumonia: Report of Two Cases

Jin Kyoung Oh, M.D., Myeong Im Ahn, M.D., Jung Im Jung, M.D., Dae Hee Han, M.D., Seog Hee Park, M.D., Chan Kwon Park, M.D.2, Young Kyoon Kim, M.D.2

1Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea.

2Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Korea.

Address reprint requests to: Myeong Im Ahn, M.D., Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-gu, Seoul 137-701, Korea. Tel. 82-2-2258-1435, Fax. 82-2-599-6771, ami@catholic.ac.kr

Received 16 October 2009       Accepted 1 December 2009

Copyright © 2010 The Korean Society of Radiology

Abstract

Novel influenza A (H1N1) infection is a highly infectious disease, which has been rapidly spreading worldwide since it was first documented in March of 2009 in Mexico. We experienced and report two cases of Influenza A (H1N1) pneumonia, accompanied by chest radiographic and CT findings. The chest radiographs revealed diffuse haziness and extensive airspace consolidation, whereas the CT scans demonstrated multifocal areas of ground glass opacity and airspace consolidation with a CT halo sign.

Keywords: Influenza A Virus, H1N1 Subtype, Pneumonia, Viral, Oseltamivir, Tomography, X-Ray Computed

Figures and Tables

Fig. 1

A 52-year-old previously healthy woman, with no recent history of travel or contact with ill-individuals.

A. An anteroposterior chest radiograph shows both parahilar haziness and suspicious consolidation in the right suprahilar region.
B-D. HRCT scans show multifocal areas of peribronchial and subpleural ground-glass opacification and some consolidation. Note smooth interlobular septal thickening and minimal bilateral pleural effusion.
jksr-62-361-g001
Fig. 2

A 73-year-old asthmatic woman, with a recent history of travel to United States.

A, B. HRCT scans obtained from outside hospital show multifocal areas of consolidation with surrounding ground-glass opacification in both lungs.
C. Chest radiograph at the time of admission to our hospital shows extensive bilateral airspace consolidation, which suggests multifocal pneumonia combined with ARDS. A small amount of pleural effusion is noted in the right upper lateral portion.
D. Follow-up chest radiographs four days later shows persistent bilateral pulmonary opacity with an increased amount of pleural effusion. The patient eventually expired due to respiratory failure.
jksr-62-361-g002

References

1. Perez-Padilla R, de la Rosa-Zamboni D, Ponce de Leon S, Hernandez M, Quiñones-Falconi F, Bautista E, et al. Pneumonia and respiratory failure from swine-origin influenza A (H1N1) in Mexico. N Engl J Med. 2009; 361(13):680–689.
2. Baker MG, Wilson N, Huang QS, Paine S, Lopez L, Bandaranayake D, et al. Pandemic influenza A (H1N1)v in New Zealand: the experience from April to August 2009. Euro Surveill. 2009; 14(34):pii=19319.
3. Hahne S, Donker T, Meijer A, Timen A, van Steenbergen J, Osterhaus A, et al. Epidemiology and control of influenza A (H1N1)v in the Netherlands: the first 115 cases. Euro Surveill. 2009; 14(27):pii=19267.
4. Gilsdorf A, Poggensee G. Working Group Pandemic Influenza A (H1N1)v. Influenza (H1N1)v in Germany: the first 10,000 cases. Euro Surveill. 2009; 14(34):pii=19318.
5. Kim EA, Lee KS, Primack SL, Yoon HK, Byun HS, Kim TS, et al. Viral pneumonias in adults: radiologic and pathologic findings. Radiographics. 2002; 22:S137–S149.
6. Lee CW, Seo JB, Song JW, Lee HJ, Lee JS, Kim MY, et al. Pulmonary complication of novel influenza A (H1N1) infection: imaging features in two patients. Korean J Radiol. 2009; 10:531–534.
7. Agarwal PP, Cinti S, Kazerooni EA. Chest Radiographic and CT Findings in Novel Swine-Origin Influenza A (H1N1) Virus (S-OIV) Infection. AJR Am J Roentgenol. 2009; 193:1488–1493.
TOOLS
Similar articles