Changes

===Biopsy===

===Biopsy===

A definitive diagnosis is obtained by taking an ileal biopsy at laparotomy and inspecting the intrinsic myenteric plexus. A 1-2cm eliptical biopsy should be taken from the anti-mesenteric border of the ileum at the level where the ileocaecal ligament ends. Degenerative lesions and necrosis are seen in the autonomic nerve ganglia and enteric nervous system.  

A definitive diagnosis is obtained by taking an ileal biopsy at laparotomy. A 1-2cm eliptical biopsy should be taken from the anti-mesenteric border of the ileum at the level where the ileocaecal ligament ends. Degenerative lesions and necrosis are seen in the autonomic nerve ganglia and enteric nervous system.

===Pathology===

===Pathology===