For ages, they have been willing to throw down over the merits of serif versus sans-serif typefaces.
Quick Answer. Liver nodules, usually a sign of liver disease, can be caused by certain parasitic or viral infections, immune system abnormalities, cancer and genetic conditions, according to Mayo Clinic. Contributing factors include heavy alcohol or drug use, unprotected sex, obesity, diabetes and exposure to certain chemicals.
A tumor or nodule is a mass of cells that grows on the lungs. It can be benign (noncancerous) or malignant (cancerous). By detecting malignant tumors in an early stage with CT lung screening, the cancer cells can be treated at a time when the cancer still has promising survival rates and is localized to the lungs.