Sub-mandibular Oedema

This animal has a sub-mandibular oedema or 'bottle jaw' caused by accumulation of fluid in the dependent part of the head - palpation of the swelling would reveal a soft and fluid consistency that quickly returns to it's original shape after being deformed. Also check for brisket oedema (although this is less common than bottle jaw).

Sub-mandibular oedema

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