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.
Most of it lies in Asia but more people live in the European part. Western or Central Russia is in Europe. 40% of Russia is in Europe. Russia's biggest cities Moscow and St Petersburg are both in Europe. Russians living in the western Asian part don't consider themselves Asian. Culturally, Russia is European, but most of the country is in Asia.