What Causes Bone Marrow Asperations And Fibrosis In A 18 Month Old?

my 18 month old son got suddenly severly ill he s had 2 bone marrow asperations one found fibrosis of the bone marrow and 15% blastomas that show traits of lukemia but not high enough percent to be classified as lukemia I didn t know there were different types of blastomas and that blastomas in themselves mean cancer what all exactly could I be looking at besides lukemia and other cancers please list everything from genetic disorders and diseases fungal bacterial viral nutritional diseases and disorders I wouldn t ask except to me so many things have the same symptoms as he s shown which are lethargy reduced apetite weight loss low platetlets low white and red blood cell counts petichia and at the start had a hive like rash if someone could narrow down the possibilities without the run around and give me a list of everything and the symtoms of what it could be it d be appreciated thanks