Pheochromocytoma
Pheochromocytoma is a rare tumor that typically develops in your adrenal glands, which are small glands located on top of each kidney. These tumors produce an excess of powerful hormones called catecholamines, primarily adrenaline (epinephrine) and noradrenaline (norepinephrine). While most pheochromocytomas are benign (non-cancerous), they can cause significant health issues if left untreated due to the uncontrolled release of these hormones into your bloodstream. This surge of hormones can lead to sudden, severe spikes in blood pressure and other symptoms that can be quite alarming. The exact cause of pheochromocytoma is often unknown. In some cases, it can be linked to genetic conditions that run in families. When a doctor suspects pheochromocytoma, lab tests are crucial for diagnosis. These tests, typically involving blood or 24-hour urine collection, measure the levels of catecholamines or their breakdown products (called metanephrines). Elevated levels can indicate the presence of such a tumor, guiding your doctor to recommend further imaging tests, like CT or MRI scans, to locate it. Identifying and treating a pheochromocytoma is vital for managing its symptoms and preventing serious complications. Early diagnosis through these lab tests allows your healthcare team to develop an appropriate treatment plan, which often involves surgery to remove the tumor, significantly improving your health and quality of life.
Common Symptoms
- Sudden, severe high blood pressure
- Pounding headaches
- Excessive sweating
- Heart palpitations (a feeling of your heart racing or pounding)
- Tremors or feelings of anxiety/nervousness
Clinical Sources
- Pheochromocytoma: Causes, Symptoms & TreatmentCleveland Clinic
Diagnostic Lab Tests
Tests commonly used to diagnose or monitor Pheochromocytoma:
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