1 MCQs in Medicine for NEET PG
A 24-year-old male presents with a 6-month history of chronic diarrhea, right lower quadrant abdominal pain, and weight loss. Ileocolonoscopy reveals the endoscopic appearance marked as **A** in the diagram — deep linear ulcers intersecting to create islands of edematous mucosa, with sharply demarcated normal segments interspersed between inflamed areas. Which of the following BEST describes the pathophysiological basis for the segmental pattern of inflammation seen in this patient's disease?
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