CASE 1 History: An 80-year-old woman presents with acute abdominal pain, nausea, and vomiting. History includes a previous cholecystectomy. 1. Which is the best diagnosis based on the location of the abnormality for this patient? 2. Which choice best describes the pathological process visible on CT for this patient? D. No etiology is demonstrated 3. The patient undergoes an enteroclysis 2 weeks later. Which choice best describes the findings?