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14253 Pathology

A 70-year-old woman with a history of ovarian cancer presents with diarrhea. She completed radiation therapy for her cancer 3 months ago. Physical examination shows cachexia, hyperactive bowel sounds, and generalized pallor. The stools are found to contain blood. A CBC shows decreased hemoglobin (7.8 g/dL) and decreased mean corpuscular volume (70 mm3). Which of the following is the most likely cause of GI bleeding in this patient?

AAngiodysplasia
BHemorrhoids
CIschemic colitis
DRadiation enterocolitis
Pathology
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