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Children's Palliative Care Foundation
Children's Palliative Care Foundation

About Childhood Cancer

About Childhood Cancer

Diagnosis & Treatment Glossary

Here are some of the common terms used in the diagnosis and treatment of childhood cancer.


Please select an alphabet to view a list of terms starting with that letter:


A doctor who specialises in treatment with radiotherapy.


Therapeutic radiology: the treatment of disease with penetrating radiation, such as X-rays, beta rays, or gamma rays, which may be produced by machines or given off by radioactive isotopes.


A return of disease symptoms after recovery had apparently been achieved or the worsening of an apparently recovering patient’s condition during the course of an illness.


1. A lessening in the severity of symptoms or their temporary disappearance during the course of an illness.
2. A reduction in the size of a cancer and the symptoms it is causing.

Residual disease

Oncology malignant cells or neoplasia that remains after any form of chemotherapy, surgery, radiotherapy of the first-line treatment.


A rare malignant tumour of the retina, occurring in infants.


A malignant tumour originating in, or showing the characteristics of, striated muscle.  


Oxford Concise English-Chinese Medical Dictionary (Second Edition 2000), Oxford University Press
Churchill’s Illustrated Medical Dictionary (Fourth Edition 2004), Longman
Online Merriam Webster dictionary at www.merriam-webster.com



Special thanks should be given to Mrs. Rosita Lie, Dr. Alan K.S. Chiang, Dr. Ha Shau-yin, Dr. Vincent Lee, Dr. Li Chi-keung, Dr. Li Chi-kong, Dr. Rever Li Chak-ho and Dr. Yuen Hui-leung for editorial review.