Multiple endocrine neoplasia type 2B is a genetic disorder characterized by pheochromocytoma, medullary thyroid carcinoma, and marfanoid features. Although hypertension and stress cardiomyopathy are known cardiovascular complications of pheochromocytoma, clinical presentation maybe subtle. Elevation in heart rate and lightheadedness induced by catecholamine excess may mimic clinical features of postural orthostatic tachycardia syndrome, as shown in our case report. (Level of Difficulty: Advanced.)

Original languageEnglish (US)
Pages (from-to)814-818
Number of pages5
JournalJACC: Case Reports
Issue number13
StatePublished - Jul 6 2022


  • awareness
  • cancer
  • cardiomyopathy
  • genetic disorders
  • hypertension
  • tachycardia

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine


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