Welcome, @diana5. There are different types of lung cancer. A carcinoid tumor is a type of neuroendocrine tumor that grows from neuroendocrine cells. Neuroendocrine cells are found in organs throughout the body. Carcinoid tumors often grow very slowly.

I recommend that in addition to taking part in the discussion in the lung cancer support group, that you may also wish to follow the:
- Neuroendocrine Tumors (NETs) support group https://connect.mayoclinic.org/group/neuroendocrine-tumors-nets/

I encourage you to introduce yourself in this discussion to meet other members with carcinoid tumor of the lung:
- Anyone had surgery to remove typical carcinoids of the lung? https://connect.mayoclinic.org/discussion/typical-carcinoids/