Diagnostic Dilemma| Volume 133, ISSUE 12, P1411-1415, December 2020

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A Peculiar Phenotype Hindering Early Diagnosis: Multiple Endocrine Neoplasia 2B Syndrome

      A 28-year-old Chinese man presented to the Emergency Department (ED) with acute onset of abdominal distension, generalized abdominal pain, and repeated vomiting. There was no fever, diarrhea, or gastrointestinal bleeding. He reported chronic constipation requiring ED attendance 5 years prior due to abdominal distension and nausea, but his bowel habits had not changed recently.


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