Fact-sheet: Radiation related colitis
Updated on 06/23/2020 at 10:20 AM
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Definition
Observed after irradiation exceeding 45 Gy, chronic radiation colitis appears more than 6 months after completion of treatment; it is secondary to obliterative endarteritis.
CT
Circumferential wall thickening, elongated strictures, no tumor mass, and infiltration of the perienteric fat.
Fistulas may occur.