Complications

High blood pressure can damage multiple organs, particularly tissues of the cardiovascular system, brain and kidneys. This damage can cause a number of critical conditions, including:

• Heart disease
• Stroke
• Kidney failure
• Problems with the nerves of the eye

Cancerous tumors

Rarely, a pheochromocytoma is cancerous (malignant), and the cancerous cells spread to other parts of the body. Cancerous cells from a pheochromocytoma or paraganglioma most often travel to the lymph system, bones, liver or lungs.