By Lucy Sweeney.
A 21-year-old medical student has turned to photographic fun to bring some cheer to others during her chemotherapy.
Tessa Calder, a fourth-year student at the University of New South Wales, has entertained hundreds of friends over the past six months with a series of posed photos featuring her newest companion — an IV pole.
Ms Calder was diagnosed with brain cancer in April this year.
"I started to get a bit of back pain and I thought it might have been my new bed, but then I started to vomit a lot and had these tingly feelings in my feet so I went to the doctor," she said.
"I was working at a medical centre at the time and they were fantastic, the whole team were. They sent me straight away for a scan.
"I was diagnosed with a metastatic medulloblastoma - basically a tumour in my cerebellum, the back part of my brain. But the reason I was getting all this back pain was that it had spread so there were all these deposits down my spine."
Ms Calder went straight into surgery to remove the tumour and then had six weeks of radiotherapy. It was during some down time in her first round of chemotherapy that she decided to strike a funny pose with her IV pole.
"I had a window and you could sort of look up to the second floor where it was just like a glass corridor – and these patients would walk by in their white hospital gowns with their IV poles and Dad was just trying to make me laugh: 'Oh look, Tessa, there's the Pope! There he is again, there's so many popes!'," she said.