We present the case of a 66-year-old man who presented with acute abdominal pain and bloody stool as his chief complaints and was finally diagnosed with ischemic colitis from colon cancer and acute cerebral infarction. Although several cognitive biases led to physicians missing the presence of acute stroke, a diagnostic team consisting of the patient, his family members, a ward nurse, and the physician worked effectively to reach the correct diagnosis soon after admission. A physician is not the only person involved in the diagnostic process. A patient-centered diagnostic team is necessary.
Keywords: bias; cognitive error; diagnostic error; diagnostic team; early closure; heuristic.
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