Does getting a lung tumor removed affect mood?

It can: It is not uncommon for patients to feel a little down after lung surgery. It is important to eat, even if you have no appetite, and stay active. Staying active includes walking, deep breathing, and not spending a lot of time sitting or lying in bed.

I do not think so: Mood changes happen with or without lung tumor removed, so that of and by itself, there is no definite correlation . However, effects of anesthesia or endocrine related type of tumor may be associated with behavioral disorder.