Postmortem magnetic resonance imaging findings of tricuspid atresia with ventricular and atrial septal defects and subvalvular pulmonic stenosis in a Japanese native Noma horse

  • KUTARA Kenji
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • KADEKARU Sho
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • HISAEDA Keiichi
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • SUGIMOTO Keisuke
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • ONO Tetsushi
    Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8515, Japan
  • INOUE Yoichi
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • NAKAMURA Shinichi
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • YOSHITAKE Ryohei
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • OHZAWA Emi
    Noma Horse Preservation Society, Ehime 794-0082, Japan
  • GOTO Akira
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • IWATA Eri
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • SHIBANO Kenichi
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • UNE Yumi
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan
  • KITAGAWA Hitoshi
    Faculty of Veterinary Medicine, Okayama University of Science, Ehime 794-8555, Japan

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説明

<p>The necropsy of a 2-day-old Noma horse that died of weakness showed an enlarged cardiac base and a narrow cardiac apex, suggesting cardiac malformation. The excised heart underwent imaging to investigate its luminal structure. On three-dimensional magnetic resonance imaging, the right atrium and right ventricle were discontinuous. The right atrium communicated with the left atrium and the left ventricle communicated with the right ventricle. The lumen narrowed near the pulmonary artery valve. Since the same findings were observed on gross examination, the foal was diagnosed with tricuspid atresia with ventricular and atrial septal defects, along with subvalvular pulmonic stenosis.</p>

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