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Case report: pheochromocytoma presenting as acute ST-segment elevation myocardial infarction without coronary artery abnormalities
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DOI：10.3389/fendo.2026.1868268.png)
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Abstract
En 中文
Pheochromocytoma can cause various cardiovascular complications; but presenting as acute ST-segment elevation myocardial infarction (STEMI) without coronary artery abnormalities is rare. We report the case of a young patient to highlight the associated diagnostic challenges. A 26-year-old female presented with acute chest pain; ST-segment elevation; and elevated cardiac enzymes. Coronary angiography revealed no stenosis. She developed severe heart failure with blood pressure variability (ranging from 153/120 mmHg to 60/40 mmHg). Laboratory results showed elevated catecholamine levels; and imaging identified a 9.7×7.6 cm adrenal mass. Histopathology confirmed pheochromocytoma. This case suggests that pheochromocytoma should be considered in young patients presenting with STEMI and heart failure without coronary lesions; particularly when accompanied by blood pressure variability. It offers a systematic differential diagnosis framework for distinguishing pheochromocytoma crisis from Takotsubo syndrome and acute myocarditis in emergency settings.
Keywords:
hypertension
pheochromocytoma
myocarditis
myocardial infarction
adrenal tumor
Takotsubo syndrome
blood pressure variability
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