Table 1.
Atrophic Acne Scar Subtypes
Scar Type | Morphology |
---|---|
Ice Pick | Diameter: <2 mm |
Depth: Lower dermis/subcutis | |
Visual: V-shaped, pitted appearance | |
Boxcar | Diameter: 1–4 mm |
Depth: Upper dermis (shallow) or lower dermis (deep) | |
Visual: Round or geometric appearance with vertical walls and flat base | |
Rolling | Diameter: ≥4 mm |
Depth: Upper dermis | |
Visual: Slopy, undulating appearance caused by fibrotic tethering of dermis to subcutaneous layer |
Notes: Reproduced with permission from Dove Medical Press. Tam C, Khong J, Tam K, Vasilev R, Wu W, Hazany SA. Comprehensive Review of Non-Energy-Based Treatments for Atrophic Acne Scarring. Clin Cosmet Investig Dermatol. 2022;15:455–469.7