Template:Keloid versus hypertrophic scar
- Keloid versus hypertrophic scar - Typical findings
| Keloid | Hypertrophic scar | |
|---|---|---|
| File:Histopathology of a keloid.jpg | File:Histopathology of a hypertrophic scar, medium magnification.jpg | |
| Flattening of the overlying epidermis | No | Yes |
| Scarring of the papillary dermis | No | Yes |
| Collagen | Thick hyalinized bundles | Whorl-like or nodular arrangements |
| Vertically oriented blood vessels | Yes | No |
| Prominent disarray of fibrous fascicles/nodules | Yes | No |
| Tongue-like advancing edge underneath normal-appearing epidermis and papillary dermis | Yes | No |
| Horizontal cellular fibrous band in the upper reticular dermis | Yes | No |
| Prominent fascia-like fibrous band | Yes | No |
