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.
The first inhabitants of Australia were the Aboriginal people. The history of Australia first began when the European explored the country. Marines from Spain and Portugal accosted the country in the 16th century but they were more attracted to East Africa, Asia and India. The first real explorers of Australia were the Dutch with better sailing ships and more knowledge in the wind system. The Dutch sailor Dirk Hartog was the first known sailor for having explored Australia in 1616. Before Dirk Hartog, another Dutch sailor, Willem Janszoon, discovered Australia in 1606.