Millie Cowan has just turned 5 and she is relishing starting school tomorrow, but her mum Carole Cowan admits it is a day her daughter may not have reached.
She said Millie had been in and out of Dunedin Hospital for about three months with high fevers and a large growth on her neck.
The lump, about the size of an orange, turned out to be a tumour.
It was metastatic neuroblastoma - a nerve cancer - and she was sent to Christchurch Hospital for treatment.
Cowan said the prognosis was "touch and go".