Endocrinologist says i have high chromogranin a in my blood. what does that mean? is it serious?

Discuss with ENDOCRI: What did the Endocrinologist tell you .Why was the test done and what are your symptoms if any ChromagraninA is elevated in Pheochromocytoma and is seen as auto antigen in type1 diabetes It is usually tested for Carcinoid Tumor and Pacreas and Prostate tumors I will suggest without worrying about all these medical names,you discuss with your Endocrinologist as to why was it ordered&what it means