Difference between revisions of "Equine Internal Medicine Q&A 18"

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|a1=Thoracic neoplasia. <br>
 
|a1=Thoracic neoplasia. <br>
 
The commonest type of thoracic neoplasia in the horse is mediastinal lymphosarcoma.
 
The commonest type of thoracic neoplasia in the horse is mediastinal lymphosarcoma.
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|l1=Pulmonary Neoplasia#Metastatic tumours
 
|q2=How can the diagnosis be confirmed?
 
|q2=How can the diagnosis be confirmed?
 
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*Mediastinal masses may sometimes extend through the thoracic inlet and be palpable externally at the base of the jugular groove; in this situation they may be amenable to biopsy.  
 
*Mediastinal masses may sometimes extend through the thoracic inlet and be palpable externally at the base of the jugular groove; in this situation they may be amenable to biopsy.  
 
*In the case of lymphosarcoma, peripheral lymph nodes may be enlarged due to neoplastic infiltration, and these may be biopsied.
 
*In the case of lymphosarcoma, peripheral lymph nodes may be enlarged due to neoplastic infiltration, and these may be biopsied.
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|l2=Cytology Q&A 3
 
 
 
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Revision as of 18:23, 5 June 2011


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A 12-year-old pony gelding is presented with a three week history of weight loss, inappetence, intermittent fever (up to 38.7°C) and ventral thoracic and abdominal oedema. Auscultation of the chest reveals bilateral absence of ventral lung sounds, and a pleural effusion is confirmed by ultrasonography. Thoracocentesis yields a large volume of blood-stained watery fluid. A tracheal wash did not reveal any any infectious cause.


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What is the most likely diagnosis? Link to Article
How can the diagnosis be confirmed? Link to Article


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