Invasive breast cancer. Invasive primary breast cancer is breast cancer that has the potential to spread from the breast to other parts of the body. The most common type of invasive breast cancer is invasive breast cancer of no special type (sometimes called invasive ductal cancer).nvasive breast cancer. Invasive primary breast cancer is breast cancer that has the potential to spread from the breast to other parts of the body. The most common type of invasive breast cancer is invasive breast cancer of no special type (sometimes called invasive ductal cancer).
), is a country in northern Eurasia. It is a federal semi-presidential republic. At 17,075,400 square kilometres (6,592,800 sq mi), Russia is the largest country in the world, covering more than one-eighth of the Earth's inhabited land area. Russia is also the world's ninth most populous country with nearly 144 million people in November 2014.
Print this map. Print this map. Russia, the world's largest country, obviously defies a brief description, as it covers 9 time zones, all climate zones except tropical, with land that stretches almost halfway around the planet and a population of 138,082,178.he Russian landmass west of the Ural Mountains (shown above in a lighter shade of grey) is referred to as European Russia by most educational atlases and geography experts. It is not a separate country, but rather called that because of its political, cultural and geographical blendings with Europe.