5 doctors weighed in:

What is the difference between malignant and benign pheochromocytoma?

5 doctors weighed in
1 doctor agrees

In brief: Prognosis

Majority of pheochromocytomas are benign only about 10 % are malignant, one third ( 30 % ) out side adrenal gland tumors are malignant.
With 50 % 5 yr survival, also show elivated levels of chromogranin a

In brief: Prognosis

Majority of pheochromocytomas are benign only about 10 % are malignant, one third ( 30 % ) out side adrenal gland tumors are malignant.
With 50 % 5 yr survival, also show elivated levels of chromogranin a
Dr. Addagada Rao
Dr. Addagada Rao
Thank
Dr. Pedro Hernandez
Internal Medicine - Geriatrics
1 doctor agrees

In brief: Histologically diff

Pheochromocytomas are virtually all benign under the microscope and are very rare.
The annual incidence in the US is 3 to 8 cases per million. When the tumor is removed and examined by the pathologist seldom shows atypical or cancer cells. The other possibility is to find a person with metastatic disease associated to a pheochromocytomas which is probably very rare.

In brief: Histologically diff

Pheochromocytomas are virtually all benign under the microscope and are very rare.
The annual incidence in the US is 3 to 8 cases per million. When the tumor is removed and examined by the pathologist seldom shows atypical or cancer cells. The other possibility is to find a person with metastatic disease associated to a pheochromocytomas which is probably very rare.
Dr. Pedro Hernandez
Dr. Pedro Hernandez
Thank
1 comment
Dr. Richard Orr
Actually 10% of pheochromocytomas are malignant. They tend to be larger and may grow into adjacent structures. The pathologist will look at the tumor with a microscope, but it is sometimes hard to tell benign from malignant where adrenal tumors are concerned.
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