obsolete_acne true true A chronic disorder of the pilosebaceous apparatus associated with an increase in sebum secretion. It is characterized by open comedones (blackheads), closed comedones (whiteheads), and pustular nodules. The cause is unknown, but heredity and age are predisposing factors. 3.88.0 DOID:6543 Acne Vulgaris MESH:D000152 MedDRA:10000496 NCIt:C27195 Tomasz Adamusiak ICD10:L70 http://purl.obolibrary.org/obo/MONDO_0011438 Replaced by Mondo term MONDO_0011438, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0011438 SNOMEDCT:11381005