Antisynthetase syndrome: Pulmonary computed tomography findings of adult patients with antibodies to aminoacyl-tRNA synthetases

Yuko Waseda, Takeshi Johkoh, Ryoko Egashira, Hiromitsu Sumikawa, Keigo Saeki, Satoshi Watanabe, Ryo Matsunuma, Hazuki Takato, Yukari Ichikawa, Yasuhito Hamaguchi, Akira Shiraki, Yoshinao Muro, Masahide Yasui, Helmut Prosch, Christian Herold, Kazuo Kasahara

Research output: Contribution to journalArticle

Abstract

Objectives To describe the pulmonary CT findings in patients with anti-ARS-antibody-positive interstitial lung disease (anti-ARS-ILD) Methods The CT findings of 64 patients with anti-ARS-ILD were retrospectively reviewed. The images were retrospectively reviewed independently by 2 chest radiologists, and the final decision on the CT findings was made by a third chest radiologist. Results There were 16 male and 48 female patients, aged 54.2 ± 13.4 years. Sixteen patients had anti Jo-1, 24 had anti-EJ, 9 had anti-PL-7, 7 had anti-PL-12, 5 had anti-KS, and 3 had anti-OJ antibodies. Overall, 63 patients (98.4%) had CT findings predominantly in the lower lobe; 61 patients (95.3%) showed peripheral opacities, and 47 patients (73.4%) showed peribronchovascular opacities. Ground-glass attenuation, consolidation, and reticulation showed similar distribution patterns. Regarding detailed CT findings, 89.1% of patients had lower volume loss, 76.6% had interlobular septal thickening, and 67.2% had thickening of bronchovascular bundles. The final radiologic diagnoses were as follows: inconsistent with usual interstitial pneumonia (UIP) in 63 patients (98.4%), which included nonspecific interstitial pneumonia (NSIP) in 35 patients (55.6%), organizing pneumonia (OP) in 4 patients (6.3%), and OP with fibrosis in 22 patients (34.9%). Conclusions The characteristic CT findings of patients with anti-ARS-ILD were areas of ground-glass attenuation and reticulation, predominantly distributed as lower and peribronchovascular lesions, which is compatible with NSIP. One-third of patients showed OP with fibrosis.

Original languageEnglish (US)
Pages (from-to)1421-1426
Number of pages6
JournalEuropean Journal of Radiology
Volume85
Issue number8
DOIs
StatePublished - Aug 1 2016
Externally publishedYes

Keywords

  • Aminoacyl-tRNA synthetases
  • Antisynthetase syndrome
  • Dermatomyositis
  • Interstitial lung disease
  • Polymyositis

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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  • Cite this

    Waseda, Y., Johkoh, T., Egashira, R., Sumikawa, H., Saeki, K., Watanabe, S., Matsunuma, R., Takato, H., Ichikawa, Y., Hamaguchi, Y., Shiraki, A., Muro, Y., Yasui, M., Prosch, H., Herold, C., & Kasahara, K. (2016). Antisynthetase syndrome: Pulmonary computed tomography findings of adult patients with antibodies to aminoacyl-tRNA synthetases. European Journal of Radiology, 85(8), 1421-1426. https://doi.org/10.1016/j.ejrad.2016.05.012