History A 68-year-old man was an inpatient in the stroke unit. He recently started a second course of intravenous antibiotics for aspiration pneumonia. He initially improved clinically, and the consolidation on his chest X-rays cleared up. Then he had a high fever and complained of abdominal pain. His nurse reported that he went toilet 8-10 times a day, passing large volumes of greenish liquid stool each time.
Examination The patient’s abdomen was generally tender, and bowel sounds were hyperactive. Abdomen - distended Temperature- 38.0°C Heart Rate - 110/min BP - 88/44 mmHg The abdominal X-ray is attached for your reference. What caused diarrhea in this patient? (Answer is posted in the comment section below!) *This Case Challenge is from the Editorial team of Docplexus and is meant for educational purposes only.
