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|q1= Describe the investigation which has been undertaken to produce the picture illustrated in the radiograph.
 
|q1= Describe the investigation which has been undertaken to produce the picture illustrated in the radiograph.
 
|a1= This is a contrast radiograph. A catheter, introduced into the puncture wound near the heel, has been advanced as far as possible, and a contrast agent injected. This has filled the digital sheath.
 
|a1= This is a contrast radiograph. A catheter, introduced into the puncture wound near the heel, has been advanced as far as possible, and a contrast agent injected. This has filled the digital sheath.
|l1=
+
|l1=Contrast Radiography
 
|q2=What is the likely explanation for the deterioration in the horse’s condition?
 
|q2=What is the likely explanation for the deterioration in the horse’s condition?
 
|a2=The nail has penetrated and contaminated the digital sheath. The severe lameness was associated with an infective tenosynovitis.
 
|a2=The nail has penetrated and contaminated the digital sheath. The severe lameness was associated with an infective tenosynovitis.
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