Anatomical study of thoracic duct in Caspian miniature horse

ABSTRACT

Location and course of thoracic duct in thethorax of Caspian miniature horse. Descriptive study. Three Caspian miniature horses, above twoyears old, were used for this study. Horses were embalmedafter euthanasia by exsangunation.Thorax was dissected oneither sides and different structures including thoracic ductwere determined, painted and photographed. The courseand relation of the thoracic duct to adjacent structures werestudied. In two miniature horses, the duct was situated onthe right side, passed cranially and opened in cranial venacava at the venous angle. In one horse the duct was on theleft side on its entire course. The anatomical position, relation and courseof the thoracic duct in two miniature horses which was onthe right side was similar to ordinary horse. However inone horse the duct was totally situated on the left. Thiscondition is very rare and uncommon in horses