Size of the tumor: The size of adrenal tumor on CT is an important criteria in determining the potential of cancer in the tumor. In general adrenal cancers are greater than 6cm in diameter. Most tumors under 6cm are benign (non-cancerous). However occasionally small tumors 4cm or greater may be cancerous.
The Australian aborigines are believed to have come from Asia, crossing via a series of land bridges that existed thousands of years ago. They were the original inhabitants before the Europeans arrived.NA testing has  indicated that the Australian Aborigines originally came from the  Indian subcontinent. They are believed â¦ to have come to Australia  via the land bridges that existed thousands of years ago but which  are now submerged. On the Wallaby.
In the 2006 Census 455,026 people (or 2.3% of the total Australian population) reported they were of Aboriginal and/or Torres Strait Islander origin. 28 percent of the Australian population reported mixed or multiple ancestries in the 2006 census.n 1996, over 8 million Australians had at least three ancestries, and over 3 million had four or more. By 2000, a majority of Australia's population was native born, and over 90 percent were descended from people from the British Isles. In 2007, more than 92 percent of all Australians descended from Europeans.