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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:


The study of the uses and properties of sound waves of very high frequency.


The use of ultrasound above 30,000 Hz to produce pictures of structures within the body.

Ultrasonotomography (Echotomography)

The use of ultrasound to examine the internal structure of the body by producing images of the reflections from different depths.

Ultrasonogram (Sonogram)

An image produced by ultrasound.

Ultrasound (Ultrasonic waves)

Sound waves of extremely high frequency (above 20,000 Hz), inaudible to the human ear.

Umbilical cord

The strand of tissue connecting the fetus to the placenta.

Umbilical cord blood transplantation

Transplant of umbilical cord blood.

Urine test

A test measuring different components of urine, a waste product made by the kidneys.


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.