Ewing's tumor

[ yōōĭngz ]

n.

A malignant tumor usually occurring before age 20 in males and involving metaphyses of the bones of the extremities.endothelial myeloma Ewing's sarcoma
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.