👉 Tumorous is a medical term that refers to an abnormal or diseased condition in which the body's immune system attacks and destroys healthy cells, leading to inflammation and tissue damage. This can occur in many different organs of the body, including the lungs, liver, pancreas, stomach, intestines, and skin. Tumors are typically benign (not cancerous) growths that do not cause any symptoms or complications, but they can still pose a risk if left untreated.