NCIt definition : A finding indicating the presence of greater than normal asymmetry between the right
and left sides of the body. The asymmetry may be manifested in the entire side or
part of it.;
Alternative definition : NCI-GLOSS: A condition in which one side of the body or a part of one side is larger
than the other. Children with hemihypertrophy have an increased risk of developing
certain types of cancer, including Wilms tumor (a childhood kidney cancer) and liver
cancer.;