- Essentials of Dx: acne vulgaris.
- Almost universal in puberty; may begin in premenarchal girls and present or persist into the fourth or fifth decade.
- Comedones are the hallmark. Severity varies from comedonal to papular or pustular inflammatory acne to cysts or nodules.
- Face, neck, and upper trunk may be affected.
- Scarring may be a sequela of the disease or picked by the patient.
- Reference from CMDT (61st Ed), Pg no: 127