Snapshot A 18-year-old boy presents to his primary care physician for abdominal pain, diarrhea, and chronic fatigue. He reports that he has nonbloody diarrhea for the past few weeks. He could not identify any “bad” foods, and nobody else around him has the same symptoms. His aunt has a history of inflammatory bowel disease, but he is unsure which specific disease. He is noted to be underweight on physical exam. Laboratory results show elevated erythrocyte sedimentation rate (ESR) and C-reactive protein. He is scheduled for a colonoscopy with biopsy to confirm the diagnosis. Introduction Overview login to view 3 more bullets Epidemiology login to view 4 more bullets Pathogenesis login to view 3 more bullets Prognosis login to view 1 more bullet Presentation Symptoms login to view 19 more bullets Physical exam login to view 10 more bullets Imaging Abdominal radiograph login to view 2 more bullets CT of abdomen login to view 2 more bullets Studies Serum labs login to view 5 more bullets Invasive studies login to view 9 more bullets Histology login to view 2 more bullets Differential Ulcerative colitis login to view 4 more bullets Treatment Medical login to view 26 more bullets Surgical login to view 3 more bullets Complications Fistula formation Colorectal cancer Abscesses Strictures