rosannah gundry , 19 months old , was diagnosed with stage three neuroblastoma cancer in december last year .
doctors found a seven kilogram tumour growing in her abdomen .
it is pressing against her spinal cord and vital organs , making it difficult for her to walk or eat without pain .
after undergoing four rounds of chemotherapy , the tumour is inoperable .
her family is now seeking to travel to the us for alternative treatment .