Pheochromocytoma Test Items

Written by Chen Yu Fei
Neurosurgery
Updated on September 17, 2024
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For pheochromocytoma, the usual tests include routine blood tests, routine urine tests, and biochemical examinations. Specific tests mainly involve collecting blood and urine catecholamine metabolites to help diagnose the condition. Furthermore, further localization diagnostics are conducted on the patient via abdominal ultrasound, as well as CT or MRI scans, to determine the specific location of the pheochromocytoma growth. Further examinations are conducted in preparation for subsequent surgery, with treatment generally recommended to be surgical. During treatment, antihypertensive drugs are used in conjunction to control blood pressure and maintain stability of the condition.

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Written by Chen Yu Fei
Neurosurgery
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How is pheochromocytoma diagnosed?

For the diagnosis of pheochromocytoma, further examinations need to be completed first. These examinations mainly include qualitative tests and localization tests. The qualitative tests are primarily conducted through laboratory tests to measure the levels of catecholamine-related metabolites to further determine the presence of the tumor. Localization tests are performed using abdominal ultrasound, abdominal CT, and, if necessary, high-resolution abdominal CT to pinpoint the location of the tumor. Once the qualitative and localization diagnostics are performed, it can be confirmed whether a pheochromocytoma exists and its specific location. Depending on the situation, surgery can be used to remove the tumor, in conjunction with pharmacological treatment.

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Written by Chen Yu Fei
Neurosurgery
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Can a pheochromocytoma be treated without surgery?

For pheochromocytoma, it is still best to receive surgical treatment. Conservative treatment through medication alone has limited effects. In most cases, gradually increasing blood pressure leads to serious symptoms or signs in the patient, such as palpitations, shortness of breath, labored breathing, chest pain, accompanied by profuse sweating, and even severe panic and feelings of impending doom, posing serious life-threatening risks to the patient. In terms of treatment, it is advised to prioritize surgical removal of the tumor, as this can fundamentally lead to a complete cure. Additionally, appropriate medication can be used before and after the surgery to assist in treatment.

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Written by Chen Yu Fei
Neurosurgery
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Is surgery necessary for pheochromocytoma?

For patients diagnosed with pheochromocytoma, it is recommended to undergo surgery as soon as possible. Complete surgical removal of the tumor often results in a very good therapeutic effect. Before surgery, some medications can be appropriately used for treatment. For example, it is advised to choose adrenergic receptor blockers, which can significantly improve the patient's condition. These can be taken orally before the operation to help gradually regulate blood pressure, or other medications such as calcium channel blockers, angiotensin-converting enzyme inhibitors, and vasodilators may be used. Only through a combination of medication and surgery can satisfactory treatment results be achieved.

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Written by Chen Yu Fei
Neurosurgery
45sec home-news-image

Pheochromocytoma Test Items

For pheochromocytoma, the usual tests include routine blood tests, routine urine tests, and biochemical examinations. Specific tests mainly involve collecting blood and urine catecholamine metabolites to help diagnose the condition. Furthermore, further localization diagnostics are conducted on the patient via abdominal ultrasound, as well as CT or MRI scans, to determine the specific location of the pheochromocytoma growth. Further examinations are conducted in preparation for subsequent surgery, with treatment generally recommended to be surgical. During treatment, antihypertensive drugs are used in conjunction to control blood pressure and maintain stability of the condition.

doctor image
home-news-image
Written by Chen Yu Fei
Neurosurgery
47sec home-news-image

Causes of hypotension in pheochromocytoma

For cases of hypotension occurring in pheochromocytoma, it is most commonly seen after the surgical removal of the tumor. At this point, the concentration of catecholamines in the blood may significantly decrease, leading to a marked reduction in effective circulating blood volume, and thus causing hypotension. This situation is relatively common after surgery for pheochromocytoma. Usually, after surgical treatment and removal of the tumor, it is important to promptly discontinue the use of receptor blockers in patients and to appropriately replenish blood volume to effectively maintain central venous pressure. This approach can generally counteract the reduction in catecholamine levels caused by surgery, which leads to hypotension.