Paediatric Oncology

Children’s cancers are often very different from adult cancers and respond differently to treatment.

The Peter Mac Children’s Clinic is the provider of radiotherapy for children under 16 years old in Victoria, Southern New South Wales and Tasmania. We also treat a number of 16–18 year olds, as well as some young adults who have paediatric-type malignancies.

There are two radiation oncologists attached to the service, Dr Greg Wheeler and Dr Mary Dwyer. Both are active members of the RANZCR Paediatric Special Interest Group, Children's Oncology Group and the Paediatric Radiation Oncology Society.

Like all Peter Mac’s tumour streams, the Paediatric Service is a collaboration with clinical partners, providing coordinated and comprehensive cancer care. Ours is the largest paediatric radiation oncology clinic in Australia, treating about 100 children a year. We liaise with the OnTrac at Peter Mac adolescent and young adult service, the Royal Children's Hospital and Monash Children's Hospital.

We have a strong music therapy program, a radiotherapist-driven video-making program and are supported by philanthropic groups such as Koala Kids and the RCD Foundation.


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Clinics are on Wednesday mornings; however, urgent cases can be seen at other times.

Clinical Trials

Peter Mac treats children on many clinical trials run through the Royal Children's Hospital and the Monash Children's Hospital. These include multinational studies through the Children's Oncology Group, SIOP and the St Jude Medulloblastoma consortium.


For patients

We understand how stressful and difficult cancer can be.

Your Peter Mac team of experts are dedicated and sensitive to your individual health and wellbeing needs - we are here to help.

You will need a referral from your GP or medical practitioner to access this service.

For health professionals

Visit the referrals page for further information.