What tests are used for pheochromocytoma?

Written by Chen Yu Fei
Neurosurgery
Updated on March 18, 2025
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For pheochromocytoma, it is usual to perform both qualitative and localization diagnoses. The qualitative diagnosis is generally based on the measurement of catecholamines and their metabolites in the patient's blood and urine. Localization diagnosis is more commonly determined through methods such as CT scans, MRI, and ultrasound to pinpoint the specific location of the pheochromocytoma, facilitating surgical treatment. Most patients achieve satisfactory results from surgery. Additionally, treatment may include the use of antihypertensive drugs. With combined treatment, most patients can achieve satisfactory results. It is recommended to seek treatment at a well-known tertiary hospital locally.

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Written by Gan Jun
Endocrinology
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What size of pheochromocytoma is malignant?

The size of pheochromocytomas and the benign or malignant nature of the tumor are not greatly related. Usually, most are familial pheochromocytomas, which are most commonly bilateral, but they have a relatively high recurrence rate and are difficult to treat with fewer available treatment options. Once a pheochromocytoma is detected, it should be taken seriously and treated promptly. The presence of a tumor often indicates that it has developed to the mid and late stages, where it becomes relatively difficult to cure. Regardless of whether the tumor is large or small, it must be taken seriously and treated with care, otherwise, it may easily worsen and affect health.

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Written by Chen Yu Fei
Neurosurgery
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How is pheochromocytoma diagnosed?

For patients with pheochromocytoma, comprehensive examinations are necessary for diagnosis. For instance, measuring catecholamines and their metabolites in blood or urine can help determine if there is a noticeable increase in catecholamine levels. Furthermore, adrenal CT scans can be used to assess the condition, where in many cases, significant occupying lesions can be detected through adrenal CT scans. In addition, other related tests also hold diagnostic value and significance, such as magnetic resonance imaging, ultrasound, and related nuclear scanning tests, which can assist in qualitative and locational diagnosis.

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Written by Chen Yu Fei
Neurosurgery
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Pheochromocytoma hypertension medication

For pheochromocytoma, it is often recommended to use adrenergic receptor blockers for the treatment of hypertension. These can be divided into α-adrenergic receptor blockers and β-adrenergic receptor blockers. In addition, all other types of antihypertensive drugs can also be used frequently during treatment. For example, angiotensin-converting enzyme inhibitors and calcium channel blockers also play a helpful role in the treatment of pheochromocytoma. Besides pharmacological treatment, the fundamental approach is to perform qualitative and localization diagnosis, and after confirmation, to surgically remove the pheochromocytoma completely to fundamentally achieve therapeutic goals.

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Written by Chen Yu Fei
Neurosurgery
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Is pheochromocytoma a cancer?

Pheochromocytoma is not a cancer. It is a special type of tumor tissue that usually originates from the neuroectodermal chromaffin tissue. It can secrete catecholamines. Based on the specific origins of the tumor cells, it can be divided into types such as parasympathetic, paraganglioma, sympathetic, and ganglioneuroma. Most often, it presents with long-term hypertension, which can cause damage to the heart, brain, and kidneys due to prolonged hypertension, or severe increases in blood pressure can lead to hypertensive brain hemorrhage, thereby endangering the patient's life. Early treatment is often necessary.

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Endocrinology
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Can malignant pheochromocytoma be cured?

When pheochromocytoma becomes malignant, it can be cured through clinical approaches, although malignant pheochromocytoma mainly refers to those that have distant metastases. It primarily exhibits aggressive growth or is accompanied by metastases to other organs, and surgery cannot completely remove it, leading to a high recurrence rate post-surgery. Generally, the five-year survival rate for patients with malignant pheochromocytoma does not exceed half. If treated with chemotherapy or arterial embolization, it can control the patient's blood pressure and alleviate the tumor burden, thereby extending the survival period. In summary, the treatment of malignant pheochromocytoma is relatively challenging, has a high recurrence rate, and poses a significant threat to human life.