It depends, each individual has their own unique factors that led to the development of the tumor. But to quickly summarize here are some of the things that can cause this type of tumor.
History of trauma
Chronic ongoing stress and/or burnout
Genetic factors( Genetic Disorders-MEN1)
Lifestyle factors
Certain Psychotropic Medications
We are working on putting together a support group for individuals and their families. Please email us if you are interested and share with anyone who may benefit.