“…The clinical signs were mainly respiratory distress, and gastric dilatation can also impede venous return and obstruct the major vessels, leading to obstructive shock and, ultimately, to cardiac arrest (Bambgade 2006, Zedan et al 2008, Ng et al 2013. In this case series, thoracic radiographs were sensitive in confirming this condition: tension gastrothorax is characterised by a well-defined, air-filled structure in the left hemithorax causing collapse of the ipsilateral lung; poorly defined left hemidiaphragm; and loss of intra-abdominal stomach (Singh et al 2011, Ng et al 2013 should be considered a differential diagnosis in young dogs presenting with tachypnoea and dyspnoea. Defects of the left crus of the diaphragm could predispose the stomach to herniate into the thoracic cavity, with potential resulting tension gastrothorax.…”