Pancreatic cancers. Computer illustration showing malignant (cancerous) growths (white-pink) in the pancreas (orange). Pancreatic cancer often causes no symptoms until it is well established and untreatable. The three locations for the cancers shown here are (left to right): carcinoma of the head of the pancreas (shown invading the duodenum), carcinoma of the body of the pancreas (the islet cells), and carcinoma of the tail of the pancreas (adhering to the spleen). The latter can spread (metastasize) to the lymph nodes and liver. For a cropped version of this illustration, see image C047/6119.