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 Chen Yu Fei
Neurosurgery
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Pheochromocytoma secretes what?

Pheochromocytoma typically refers to tumors that originate from chromaffin tissue of the neural crest, and more often the tumors arise from sympathetic or parasympathetic ganglia, primarily secreting catecholamines. Many patients, due to long-term secretion of catecholamines, experience significant hypertension; severe cases may lead to hypertensive crises and cause serious damage to the heart, brain, and kidneys, or even life-threatening conditions due to severe hypertension. In most cases, if diagnosed and treated early, satisfactory treatment results can often be achieved. Those with pheochromocytoma should visit local hospitals in a timely manner for early diagnosis and treatment.

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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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How is pheochromocytoma diagnosed?

For the examination of pheochromocytoma, it is generally recommended to use qualitative or localization diagnostic methods. Qualitative examinations typically involve collecting metabolites of catecholamines from urine and blood to further facilitate a definitive diagnosis. Localization examinations are conducted through abdominal ultrasound, CT, or MRI to further identify the specific growth location of the pheochromocytoma. After a definitive diagnosis through qualitative and localization examinations, surgery is generally recommended to effectively remove the pheochromocytoma. Additionally, antihypertensive medication can be used to help control symptoms.

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Written by Gao Yi Shen
Neurosurgery
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Can pheochromocytoma cause back pain?

Pheochromocytoma can also manifest as back pain, but this typically occurs when the pheochromocytoma has grown very large and is more likely to cause it. Generally, the initial symptoms are more often high blood pressure. After the increase in blood pressure, it can indirectly cause symptoms such as arrhythmias, palpitations, excessive sweating, or dizziness. Therefore, judgment must be based on the situation. If the patient has long-term uncontrolled hypertension, or fluctuating blood pressure, it is important to consider testing for pheochromocytoma. For pheochromocytomas, unless they grow very large and compress surrounding organs, it is rare for abdominal pain to occur. Therefore, a thorough examination is necessary for a clearer diagnosis.

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Written by Chen Yu Fei
Neurosurgery
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Management of Pheochromocytoma Crisis

When a pheochromocytoma crisis occurs, the patient often first shows significant elevations in blood pressure, usually characterized by a rise in systolic pressure, which can exceed 200mmHg or even 300mmHg. Immediate administration of antihypertensive drugs for symptomatic treatment is necessary. Additionally, the patient may exhibit a clear hypermetabolic state, with profuse sweating, limb convulsions, and even consciousness disorders. At this point, the patient should be immediately transferred to the intensive care unit for close observation of any changes in their condition, and effective monitoring of vital signs should be conducted. Furthermore, patients should receive cardiac monitoring, blood oxygen saturation monitoring, and can be given intravenous infusions of sodium nitroprusside to rapidly reduce blood pressure. Meanwhile, ongoing observation of the patient’s condition and appropriate replenishment of blood volume are needed. (Please administer medication under the guidance of a professional physician and do not medicate blindly.)