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MEGACOLON |
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congenital: |
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imperforate anus Hirschsprung's disease* |
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acquired: |
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Chagas' disease (Trypanosoma cruzi)* amyloidosis (decreased colonic motility)* spinal cord injury cerebral atrophy parkinsonism colonic obstruction (tumour or stricture) functional 'psychosomatic' disorder |
|
|
toxic megacolon: |
ulcerative colitis Crohn's disease pseudomembranous colitis ischaemic colitis dysentery |
[* denotes absent or destroyed mural ganglia on histology]
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