Pheochromocytoma as a cause of repeated acute myocardial infarctions,heart failure,and transient erythrocytosis:A case report and review of the literature  

作　　者：Fei Shi Li-Xian Sun Sen Long Ying Zhang 

机构地区：[1]Department of Cardiology,Affiliated Hospital of Chengde Medical University,Chengde 067000,Hebei Province,China [2]Department of Traditional Chinese Medicine,Affiliated Hospital of Chengde Medical University,Chengde 067000,Hebei Province,China

出　　处：《World Journal of Clinical Cases》2021年第4期951-959,共9页世界临床病例杂志

基　　金：Supported by Science and Technology Support Plan Project of Chengde,China,No.201701A072.

摘　　要：BACKGROUND Pheochromocytoma is a rare catecholamines-secreting tumor arising from chromaffin cells in the adrenal medulla.It classically presents with paroxysmal hypertension,headaches,palpitations,sweating,and metabolic disorders.Atypical presentations such as acute myocardial infarction,heart failure,cardiomyopathy,stroke,and transient erythrocytosis have been infrequently documented.CASE SUMMARY We describe the case of a 72-year-old man diagnosed with pheochromocytoma presenting with non-ST segment elevation myocardial infarction,heart failure,and transient erythrocytosis with nonobstructed coronary arteries.This was his second heart attack.The patient was previously diagnosed with myocardial infarction,and an immense mass was found on the left adrenal gland 3 years prior.Based on clinical and laboratory findings,a diagnosis of pheochromocytoma was confirmed.His coronary angiogram showed nonobstructed coronary arteries except for a myocardial bridge in the left anterior descending branch.This was a form of type-2 myocardial infarction.The myocardial cell lesions were caused by sudden secretion of catecholamines by the pheochromocytoma.Even more atypically,his hemoglobin level was obviously elevated at admission,but after a few days of treatment with an alpha-adrenergic receptor blocker,it dropped to normal levels without additional treatment.CONCLUSION Pheochromocytoma may be a cause of acute myocardial infarction,heart failure,and transient erythrocytosis.

关 键 词：PHEOCHROMOCYTOMA Myocardial infarction Heart failure CARDIOMYOPATHY ERYTHROCYTOSIS Case report 

分 类 号：R736.6[医药卫生—肿瘤] R542.22[医药卫生—临床医学]