|Invasion is defined as the forcible occupation of the premises without prior intimation. It affects the natural working environment. It is a direct form of cancer spreading to space surrounding nerves. It is concerned with head, neck, prostate gland and colorectal organ. Prediction of disease is very difficult. It can be treated surgically and by using radiotherapy management. A journal is a periodical publication intended to further progress of science, usually by reporting new research. Most journals are highly specialized, although some of the oldest journals publish articles, reviews, editorials, short communications, letters, and scientific papers across a wide range of scientific fields. Journals contain articles that peer reviewed, in an attempt to ensure that articles meet the journal's standards of quality, and scientific validity. Each such journal article becomes part of the permanent scientific record.