Abstract
A 42-year-old man was evaluated for perineal pain. Computed tomography of the pelvis revealed recurrence of rectal cancer, which was impossible to treat sugically. Though irradiation therapy was started, As it had to be discantinued beccuse of the appearance of inflammation in the perineal region and lower abdominal pain after 800 rad. Small intestinal gastrography revealed a perforation of the ileum, and intestinal resection was performed. Pathological studies showed cancer invasion, bleeding and edema due to acute radiation damage. The radiosensitive nature of the small intestine in this case led to a fatal outcome. Effective therapeutic and examination methods have not yes been established for cases such as this ore. It is concluded that lowdose radiation may induce severe intestial complications.
