A 67-year-old man presents, reporting constipation that has lasted 3 days. He has a constant, generalized dull abdominal pain that is intermittently worse, occurring in what he describes as waves. He has nausea and reports that he has vomited once. He reports no blood in the urine or stool, and no weight loss, dysuria or urinary frequency, or dizziness. View the image taken (Figure 1) and consider what your diagnosis would be. Differential Diagnoses Small …
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