Visualization of the Thoracic Duct with Injections of Dyes or Contrast Media into the Testicular Parenchyma in the Rabbit

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概要

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• The thoracic duct drains lymph from the caudal part of the body to the venous system. The visualization of the thoracic duct is important for diagnosis of chylothorax, which may be caused by the damage of the duct. However, it is not easy to visualize the thoracic duct by injecting dyes and/or contrast media into peripheral lymph nodes and mesenteric lymphatics. In the present study, we examined whether the thoracic duct can be visualized by injecting dyes and contrast media directly into the testicular parenchyma. Under deep pentobarbital anesthesia, 14 male Japanese White rabbits were percutaneously injected with dyes (India ink or methylene blue) or contrast media (iohexol 240, 300, or LipiodolTM) into the testicular parenchyma. Then, we grossly observed the stained thoracic duct or took radiographs and CT images of the duct. In all cases with dyes injections, the thoracic duct was successfully visualized. We observed stained lymphatic vessels from the testis to the duct. In case of contrast media injections, the thoracic duct was visualized with X-ray and CT imaging, when 1.5-2.0 ml per one testis of iohexol 240 at 37°C were injected into the right or both testes. The duct was most clearly visible, 3-5 min after the injections. The results show that the thoracic duct is reliably visualized simply by injecting dyes or contrast media into the testicular parenchyma. Our visualization method may also be applicable to the diagnosis of chylothorax in male animals.

著者

• Tsuruno Akifumi

  Laboratory of Veterinary Anatomy, Faculty of Agriculture and Institute of Symbiotic Science and Tech

• Shibazaki Akira

  Laboratory of Veterinary Diagnostic Imaging, Faculty of Agriculture and Institute of Symbiotic Scien

• Kanda Naotoshi

  Laboratory of Veterinary Anatomy, Faculty of Agriculture and Institute of Symbiotic Science and Tech

• SHIBATA Hideshi

  Laboratory of Veterinary Anatomy, Faculty of Agriculture and Institute of Symbiotic Science and Tech

• Shibata Hideshi

  Laboratory Of Veterinary Anatomy Institute Of Symbiotic Science And Technology Tokyo University Of A

• KANDA Naotoshi

  Laboratory of Veterinary Anatomy, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology

• SHIBAZAKI Akira

  Laboratory of Veterinary Diagnostic Imaging, Faculty of Agriculture and Institute of Symbiotic Science and Technology, Tokyo University of Agriculture and Technology

• TSURUNO Akifumi

  Laboratory of Veterinary Anatomy, Faculty of Agriculture and Institute of Symbiotic Science and Technology, Tokyo University of Agriculture and Technology

関連論文

• Visualization of the Thoracic Duct with Injections of Dyes or Contrast Media into the Testicular Parenchyma in the Rabbit
• Polymorphism of rRNA Gene Loci in the Dog
• Organization of intrinsic connections of the retrosplenial cortex in the rat
• Patterns of Efferent Lymphatics of the Rabbit Testis

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