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Clinical course and changes in high-resolution computed tomography findings in patients with idiopathic pulmonary fibrosis without honeycombing

Hiroyoshi Yamauchi, Masashi Bando, Tomohisa Baba, Kensuke Kataoka, Yoshikazu Inoue, Yoshihito Yamada, Hiroshi Yamamoto, Kentaro Watanabe, Yasuhiro Terasaki, Akira Hebisawa, Yoshinori Kawabata, Takeshi Johkoh, Fumikazu Sakai, Yukihiko Sugiyama, Takashi Ogura
European Respiratory Journal 2015 46: PA4848; DOI: 10.1183/13993003.congress-2015.PA4848
Hiroyoshi Yamauchi
1Division of Pulmonary Medicine, Department of Medicine, Jichi Medical University, Tochigi, Japan
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Masashi Bando
1Division of Pulmonary Medicine, Department of Medicine, Jichi Medical University, Tochigi, Japan
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Tomohisa Baba
2Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Kanagawa, Japan
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Kensuke Kataoka
3Department of Respiratory Medicine and Allergy, Tosei General Hospital, Aichi, Japan
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Yoshikazu Inoue
4Department of Diffuse Lung Diseases and Respiratory Failure, Clinical Research Center, National Hospital Organization Kinki-Chuo Chest Medical Center, Osaka, Japan
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Yoshihito Yamada
5Department of Respiratory Medicine, JR Tokyo General Hospital, East Japan Railway Company, Tokyo, Japan
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Hiroshi Yamamoto
6First Department of Internal Medicine, Shinshu University School of Medicine, Nagano, Japan
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Kentaro Watanabe
7Division of Respiratory Medicine, Department of Internal Medicine, Fukuoka University School of Medicine, Fukuoka, Japan
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Yasuhiro Terasaki
8Department of Analytic Human Pathology, Nippon Medical School, Tokyo, Japan
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Akira Hebisawa
9Department of Clinical Research, National Hospital Organization Tokyo National Hospital, Tokyo, Japan
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Yoshinori Kawabata
10Department of Pathology, Saitama Cardiovascular and Respiratory Center, Saitama, Japan
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Takeshi Johkoh
11Department of Radiology, Kinki Central Hospital of Mutual Aid Association of Public School Teachers, Hyogo, Japan
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Fumikazu Sakai
12Department of Diagnostic Radiology, Saitama Medical University International Medical Center, Saitama, Japan
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Yukihiko Sugiyama
1Division of Pulmonary Medicine, Department of Medicine, Jichi Medical University, Tochigi, Japan
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Takashi Ogura
2Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Kanagawa, Japan
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Abstract

Background: Some idiopathic pulmonary fibrosis (IPF) patients are histologically diagnosed with usual interstitial pneumonia (UIP) pattern and show lack of honeycombing on high resolution computed tomography (HRCT) . Clinical course and the changes in HRCT findings of these IPF patients are unknown.

Aims and objectives: The purpose of our study was to retrospectively assess the changes in HRCT pattern in IPF patients, who were diagnosed with UIP pattern by histology and show lack of honeycombing by HRCT in initial evaluation, and to clarify their clinical course and prognosis.

Methods: We evaluated IPF patients without honeycombing on HRCT and who were histologically diagnosed with UIP pattern on the basis of surgical lung biopsy between 1991 and 2010. Multidisciplinary discussions were held 5 times between 2011 and 2014 to evaluate the disease changes as assessed by HRCT and clinical course of these patients.

Results: Thirty patients were evaluated by 2014. Sixteen patients demonstrated emerging honeycombing (Group A) and 12 patients demonstrated emerging traction bronchiectasis or cyst without honeycombing (Group B) by HRCT. Two cases were considered as no change (Group C) by HRCT. The mean survival times of Groups A and B were 67.1 and 61.2 months which were not significantly different (p=0.76) .

Conclusions: Some IPF patients may not demonstrate honeycombing on HRCT even if they have advanced stage IPF. Our study suggests that there is no difference in prognosis of IPF between cases with honeycombing on HRCT and those without.

  • Idiopathic pulmonary fibrosis
  • Interstitial lung disease
  • Longitudinal study
  • Copyright ©ERS 2015
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Clinical course and changes in high-resolution computed tomography findings in patients with idiopathic pulmonary fibrosis without honeycombing
Hiroyoshi Yamauchi, Masashi Bando, Tomohisa Baba, Kensuke Kataoka, Yoshikazu Inoue, Yoshihito Yamada, Hiroshi Yamamoto, Kentaro Watanabe, Yasuhiro Terasaki, Akira Hebisawa, Yoshinori Kawabata, Takeshi Johkoh, Fumikazu Sakai, Yukihiko Sugiyama, Takashi Ogura
European Respiratory Journal Sep 2015, 46 (suppl 59) PA4848; DOI: 10.1183/13993003.congress-2015.PA4848

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Clinical course and changes in high-resolution computed tomography findings in patients with idiopathic pulmonary fibrosis without honeycombing
Hiroyoshi Yamauchi, Masashi Bando, Tomohisa Baba, Kensuke Kataoka, Yoshikazu Inoue, Yoshihito Yamada, Hiroshi Yamamoto, Kentaro Watanabe, Yasuhiro Terasaki, Akira Hebisawa, Yoshinori Kawabata, Takeshi Johkoh, Fumikazu Sakai, Yukihiko Sugiyama, Takashi Ogura
European Respiratory Journal Sep 2015, 46 (suppl 59) PA4848; DOI: 10.1183/13993003.congress-2015.PA4848
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