2 year old with chicken pox has hard, moveable lumps under the skin at the back of the scalp. hard, pea-marble sized and moveable.

Nodes: There are thousands of lymph node located around the body.Many in the neck, head, behind the ear are prominent in kids as they are not buried in tissue . At rest these are often 1/4 inch in diameter and may grow to marble sized when reacting to a stimulus.Shots,bites or viral infections can increase their size to 1 cm or more.Most will shrink down to pre-stimulated size over 3-4 wks.