Acne Vulgaris [Disease/Finding] M0000231 D000152 C0001144 N0000000288 C754 Acne Vulgaris 1024380 88616000 Acne 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. Acne Vulgaris Sebaceous Gland Diseases [Disease/Finding] Acneiform Eruptions [Disease/Finding] Acne Vulgaris [Disease/Finding] M0000231 D000152 C0001144 N0000000288 C754 Acne Vulgaris 1024380 88616000 Acne 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. Acne Vulgaris