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[Bilateral adrenal pheochromocytoma. A case report]
A Benchekroun1, A Lachkar, A Soumana
1Clinique Urologique A, CHU Ibn Sina, Rabat, Maroc.
Annales D'Urologie
|November 25, 1998
Summary
This case study highlights a rare bilateral adrenal pheochromocytoma diagnosed via imaging and MIBG scan, despite normal hormone levels. Surgical removal resolved symptoms and controlled hypertension.
Area of Science:
- Endocrinology
- Oncology
- Surgical Case Report
Background:
- Pheochromocytoma is a rare neuroendocrine tumor arising from chromaffin cells, typically in the adrenal medulla.
- Bilateral adrenal pheochromocytoma is uncommon, presenting diagnostic challenges, especially with atypical hormonal profiles.
- Hypertension (HT) is a common symptom, but presentation can vary, sometimes leading to delayed diagnosis and complications like heart failure.
Observation:
- A 25-year-old male presented with abdominal pain and signs of severe hypertension (HT), complicated by heart failure.
- Imaging (ultrasound, CT) identified bilateral adrenal tumors.
- Hormonal assessment, including metanephrines and normetanephrines, yielded normal results.
Findings:
- Despite normal hormonal markers, a diagnosis of pheochromocytoma was suspected.
- MIBG scintigraphy confirmed bilateral adrenal pheochromocytoma, ruling out other sites.
- Surgical intervention involved right adrenalectomy and left adrenal tumor excision.
Implications:
- This case underscores the importance of considering pheochromocytoma even with normal hormonal tests, especially in the presence of suggestive clinical signs and imaging findings.
- MIBG scintigraphy can be crucial in diagnosing pheochromocytoma when biochemical tests are inconclusive.
- Successful surgical management led to symptom resolution and blood pressure control, demonstrating the efficacy of timely intervention.