To learn more about what cancer is and how it can grow and spread, see What Is Cancer? To understand gastrointestinal carcinoid tumors, it helps to know about the gastrointestinal system, as well as the neuroendocrine system.
To learn more about what cancer is and how it can grow and spread, see What Is Cancer? To understand gastrointestinal carcinoid tumors, it helps to know about the gastrointestinal system, as well as the neuroendocrine system.