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===Clinical Signs===
===Clinical Signs===
====Simple obstruction====
====Simple obstruction====
−*Vomiting ± diarrhoea
+*Vomiting; the further the obstruction is towards the mouth, the more frequent the vomiting is
−*Depression and anorexia
+*Moribund or in septic shock; if part of the intestine becomes devitalised, resulting in septic peritonitis
+*Abdominal foreign body, mass or obstructive ileus may be palpable
+===Diagnostic Imaging===
===Diagnostic Imaging===
+====Radiography====
+The cause of the obstruction may be visible
+====Ultrasonography====
+Most of the time, this is a more sensitive technique in revealing the cause of the obstruction compared to radiography. Dilation and thickening of the wall of the intestine may be visible.
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*Hall, E.J, Simpson, J.W. and Williams, D.A. (2005) '''BSAVA Manual of Canine and Feline Gastroenterology (2nd Edition)''' ''BSAVA''
*Hall, E.J, Simpson, J.W. and Williams, D.A. (2005) '''BSAVA Manual of Canine and Feline Gastroenterology (2nd Edition)''' ''BSAVA''
*Nelson, R.W. and Couto, C.G. (2009) '''Small Animal Internal Medicine (Fourth Edition)''' ''Mosby Elsevier''.
*Nelson, R.W. and Couto, C.G. (2009) '''Small Animal Internal Medicine (Fourth Edition)''' ''Mosby Elsevier''.
+`