Gastrointestinal System

{"ops":[{"insert":"Diagnosis and reasoning"},{"insert":"\n","attributes":{"header":1}},{"insert":"This elderly lady has presented with acute pain in the left lower abdomen, along with an episode of lower gastrointestinal (GI) bleeding the previous night; the physical examination is significant for guarding and tenderness in the left lower quadrant, as well as a mild fever.\n\nWhile this constellation of clinical findings clearly points to the gastrointestinal tract, it is somewhat perplexing, as no single diagnosis appears perfectly compatible.\n\nAcute diverticulitis immediately springs to mind, and is highly compatible with all symptoms, except the episode of bleeding; note that diverticular bleeding is typically painless.\n\nColonic ischemia can give rise to all of these symptoms, but is uncommon, and also clinically less likely in the abs"}]}

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