Megacolon other imaging findings: Difference between revisions
Created page with "__NOTOC__ {{Megacolon}} {{CMG}} ==Overview== ==Other Imaging Findings== ===Colonic Marker Studies== Colonic marker transit studies are useful to distinguish colonic inertia ..." |
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==Overview== | ==Overview== | ||
==Other Imaging Findings== | ==Other Imaging Findings== | ||
===Colonic Marker Studies== | ===Colonic Marker Studies=== | ||
Colonic marker transit studies are useful to distinguish colonic inertia from functional outlet obstruction etiologies. In this test, the patient swallows a water soluble bolus of radio-opaque contrast and films are obtained 1, 3 and 5 hours later. Patients with colonic inertia show the marker spread the large intestines, while patients with outlet obstruction exhibit show accumulations of markers in some places. | Colonic marker transit studies are useful to distinguish colonic inertia from functional outlet obstruction etiologies. In this test, the patient swallows a water soluble bolus of radio-opaque contrast and films are obtained 1, 3 and 5 hours later. Patients with colonic inertia show the marker spread the large intestines, while patients with outlet obstruction exhibit show accumulations of markers in some places. | ||
===Colonoscopy== | ===Colonoscopy=== | ||
A [[colonoscopy]] can also be used to rule out mechanical obstructive causes. | A [[colonoscopy]] can also be used to rule out mechanical obstructive causes. | ||
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[[Category:Gastroenterology]] | |||
Latest revision as of 15:19, 12 July 2016
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Other Imaging Findings
Colonic Marker Studies
Colonic marker transit studies are useful to distinguish colonic inertia from functional outlet obstruction etiologies. In this test, the patient swallows a water soluble bolus of radio-opaque contrast and films are obtained 1, 3 and 5 hours later. Patients with colonic inertia show the marker spread the large intestines, while patients with outlet obstruction exhibit show accumulations of markers in some places.
Colonoscopy
A colonoscopy can also be used to rule out mechanical obstructive causes.
Anorectal manometry
Anorectal manometry may help to differentiate acquired from congenital forms.
Rectal Biopsy
Rectal biopsy is recommended to make a final diagnosis of Hirschsprung disease.