myelocytoma

[ mī′ə-lō-sī-tōmə ]

n. pl. my•e•lo•cy•to•mas

A nodular, circumscribed, relatively dense accumulation of myelocytes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.