jaundice A disease caused by increased amounts of bile in the blood. This causes the skin and the whites of the eyes to turn yellow. It also causes tiredness and loss of appetite.

jejunum [je-ju-num] One of three portions of the small bowel , below the duodenum and leading into the ileum.

Kaposi's sarcoma [Ka-po-si's sar-co-ma] Sarcoma of unknown tissue origin which appears on the skin , in the oral cavity, lungs and visceral cavity.

kidney cancer Most cancers of the kidney are renal cell carcinomas (also known as hypernephromas), a type of adenocarcinoma that usually occurs in adults.

kidneys The two organs in the abdomen that remove waste from the blood (as urine).