There is no known way to prevent a pheochromocytoma.
In most people, surgery to remove the pheochromocytoma is successful. In these cases, there are often no long-term effects. In others, however, the tumor may cause death. This may be due to a massive release of hormones by the tumor. Occasionally, the tumor may cause death by spreading to other parts of the body.
A pheochromocytoma is not contagious.