J Korean Surg Soc.  2012 Jul;83(1):65-68. 10.4174/jkss.2012.83.1.65.

Extra-adrenal pheochromocytoma after operation of congenital heart disease: a case report of 18-year-old boy

• Hwang BH
• Kim HY
• Jung SE
• Park KW

• KMID: 2212282
• DOI: http://doi.org/10.4174/jkss.2012.83.1.65

Abstract

Extra-adrenal pheochromocytoma is rare and presents variable symptoms. Its difficulty to diagnosis delays appropriate treatment. We would like to report an unusual case of extra-adrenal pheochromocytoma. The patient came to the emergency room with dyspnea, palpitation, and cyanosis. He had a history of hospitalization for Fontan operation due to congenital heart disease. Despite medication, his blood pressure remained high. After additional laboratory and image exams, he was diagnosed with extra-adrenal pheochromocytoma and had surgical treatment. The final pathology report was extra-adrenal pheochromocytoma with high risk of malignancy. The postoperative course was uneventful and showed normal laboratory results even after 3 months of outpatient follow-up. Extra-adrenal pheochromocytoma presents variable symptoms. We should consider endocrinologic diseases like extra-adrenal pheochromocytoma in cases presenting with palpitation and high blood pressure, even with a past history of cardiac surgery.

Keyword

Pheochromocytoma; Paraganglioma; Fontan procedure; Congenital heart defect

MeSH Terms

Adolescent
Blood Pressure
Cyanosis
Dyspnea
Emergencies
Follow-Up Studies
Fontan Procedure
Heart
Heart Defects, Congenital
Heart Diseases
Hospitalization
Humans
Hypertension
Outpatients
Paraganglioma
Pheochromocytoma
Porphyrins
Thoracic Surgery
Porphyrins

Figure

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  Fig. 1 Para-aortic mass (arrow) is well defined on computed tomography (A) and metaiodobenzylguanidine test (B).

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  Fig. 2 The permanent pathology reported the tumor as extra-adrenal pheochromocytoma, with a high risk of malignancy.

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  Fig. 3 Microscopic findings of extra-adrenal pheochromocytoma. The trabecular arrangement (Zellballen) of neoplastic chief cells with abundant cytoplasm is evident (H&E, ×200).

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