acne conglobata

[ kŏn′glō-bātə ]

n.

Severe cystic acne characterized by cystic lesions, abscesses, communicating sinuses, and thickened, nodular scars.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.