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Pheochromocytoma presenting as possible cardiomyopathy
Giornale Italiano Di Cardiologia
|January 1, 1982
Summary
Pheochromocytoma can mimic hypertrophic obstructive cardiomyopathy. This case highlights the crucial role of catecholamines in cardiac hypertrophy and systolic anterior motion of the mitral valve.
Area of Science:
- Cardiology
- Endocrinology
- Oncology
Background:
- Pheochromocytoma, a rare neuroendocrine tumor, secretes excess catecholamines.
- Excess catecholamines can cause cardiovascular complications, including hypertension and cardiomyopathy.
- Hypertrophic obstructive cardiomyopathy (HOCM) is characterized by left ventricular hypertrophy and dynamic outflow tract obstruction.
Observation:
- A 67-year-old woman presented with symptoms suggestive of HOCM.
- Echocardiography revealed left ventricular concentric hypertrophy and systolic anterior movement of the mitral valve.
- Carotid pulse exhibited a distinctive spike-and-dome waveform.
Findings:
- The patient was diagnosed with pheochromocytoma.
- This suggests pheochromocytoma can present as HOCM.
- Catecholamine excess is implicated in the observed cardiac hypertrophy and valve dynamics.
Implications:
- Highlights the importance of considering pheochromocytoma in HOCM-like presentations.
- Underscores the direct impact of catecholamines on myocardial structure and function.
- Emphasizes the need for thorough endocrine evaluation in unexplained cardiac conditions.