[http://w3.vet.cornell.edu/nst/nst.asp?Fun=Image&imgID=11491 Image of traumatic diaphragmatic hernia with displaced intestine in a dog by Cornell Veterinary Medicine]
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'''Small animals'''
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*Common sequele to road trafic accident in small animals
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*In small animals the muscle part of diaphragm tends to rupture
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*Many of the abdominal viscera may herniate into the thoracic cavity, [[Liver - Anatomy & Physiology|liver]] and [[Small Intestine - Anatomy & Physiology|small intestine]] most commonly
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*May be undetected for some time before clinical signs develop
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*Clinical signs:
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**Dyspnoea
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**Ascites
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**Hydrothorax
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**Chylothorax
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**Gastric tympany
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**Intestinal obstruction
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*In chronic lesions margins of the tear are often fibrous and smooth with or without adhesions to the viscera