Freebase(0.00 / 0 votes)Rate this definition: Arbol is a programming language which has been primarily developed for use in Genetic Programming experiments. It is a functional programming language inspired by the ideas of other small and esoteric languages.
Causes. In most cases of colon or rectal cancers, the cause or causes are unknown. Defects in genes that normally protect against cancer play the major role in causing polyp cells to continuously change and become cancerous.
Posts. 410. Yes, colon cancer can occur without polyps. Lynch syndrome, or HNPCC (hereditary non-polyposis colorectal cancer), is caused by an inherited gene mutation. The mutation usually manifests as colon cancer, but other gastrointestinal cancers can also occur because of this mutation.osts. 410. Yes, colon cancer can occur without polyps. Lynch syndrome, or HNPCC (hereditary non-polyposis colorectal cancer), is caused by an inherited gene mutation. The mutation usually manifests as colon cancer, but other gastrointestinal cancers can also occur because of this mutation.