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.
The geography of Russia describes the geographic features of Russia, a country extending over much of northern Eurasia. Comprising much of eastern Europe and northern Asia, it is the world's largest country in total area.Due to its size, Russia displays both monotony and diversity.o the east of the Urals is the West Siberian Plain, stretching about 6,000 kilometers from west to east and about 670 kilometers from north to south. With more than half its territory below 200 meters in elevation, the plain contains some of the world's largest swamps and floodplains.