Presentation of an unsuspected pheochromocytoma as acute aortic valvular insufficiency and diabetes mellitus type 2

Bridget Sinnott, S. Wu, D. Sarne, B. Hatipoglu

Research output: Contribution to journalReview article

Abstract

We report the uncommon presentation of an unsuspected pheochromocytoma in a 76-year-old woman. Two years after surgery for acute aortic valve insufficiency and a diagnosis of diabetes, the patient presented with postural headaches, orthostatic dizziness, and palpitations. Physical examination confirmed intractable hypertension, orthostatic hypotension, and congestive heart failure secondary to progressive dilated cardiomyopathy. Based on her symptomatology, examination findings, and progressive dilated cardiomyopathy despite aortic valve replacement, a diagnosis of a pheochromocytoma was entertained. Twenty-four-hour urinary studies confirmed the presence of a catecholamine producing tumor. A magnetic resonance image revealed the presence of a 4.6-cm left adrenal mass, which characteristically enhanced on T2 imaging. After medical stabilization with phenoxybenzamine, she underwent a left robotic adrenalectomy. Histology confirmed a diagnosis of a pheochromocytoma. Two weeks later, she was normoglycemic and normotensive off all medications. The pheochromocytoma is a rare catecholamine-producing tumor, which can be lethal unless recognized and appropriately treated. A high degree of clinical suspicion is necessary, especially in the presence of confounding disease processes. A pheochromocytoma should be considered in the differential diagnosis of acute aortic valvular insufficiency in the setting of orthostatic hypotension, intractable hypertension, and newly diagnosed diabetes.

Original languageEnglish (US)
Pages (from-to)335-339
Number of pages5
JournalEndocrinologist
Volume16
Issue number6
DOIs
StatePublished - Nov 1 2006

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Pheochromocytoma
Type 2 Diabetes Mellitus
Orthostatic Hypotension
Dilated Cardiomyopathy
Catecholamines
Hypertension
Phenoxybenzamine
Aortic Valve Insufficiency
Adrenalectomy
Robotics
Dizziness
Aortic Valve
Physical Examination
Headache
Neoplasms
Histology
Differential Diagnosis
Magnetic Resonance Spectroscopy
Heart Failure

Keywords

  • Aortic valve insufficiency
  • Diabetes
  • Pheochromocytoma

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism

Cite this

Presentation of an unsuspected pheochromocytoma as acute aortic valvular insufficiency and diabetes mellitus type 2. / Sinnott, Bridget; Wu, S.; Sarne, D.; Hatipoglu, B.

In: Endocrinologist, Vol. 16, No. 6, 01.11.2006, p. 335-339.

Research output: Contribution to journalReview article

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