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.
African Australians are Australians of African ancestry. Large-scale immigration from Africa to Australia is only a recent phenomenon, with Europe and Asia traditionally being the largest sources of migration to Australia.ore than 70 per cent of those from West African countries remained in Australia following military coup d'etats Ã©tats in their countries of. Birth, ultimately, however immigration From africa To australia generally remained limited until the. 1990s