solitary bone cyst

[sŏlĭ-tĕr′ē]
n.
  1. A unilocular cyst containing serous fluid and lined with a thin layer of connective tissue, usually occurring in the shaft of a long bone in growing children.osteocystoma unicameral bone cyst
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.