Carcinoma: Cancer that begins in the skin or in tissues that line or cover body organs. Examples are carcinoma of the breast, colon, liver, lung, pancreas, prostate, or stomach. From Cancer Resources HER2+ Diagnosis: What to ExpectOne Clinical Trial to Long-Term RemissionTreatments for Lung Cancer by Stage Featured Centers What Are the Best PsA Treatments for You?Understanding Biologics 10 Things People With Depression Wish You Knew