Hyperpigmented birthmark
by Kantron Soonthornareruk
1. Epidermal
1.1. Cafe au lait
1.2. Melanocytic nevus
1.3. Lentigines
1.4. Freckle
1.5. Speckle
2. Dermal
2.1. Mongolian spot
2.2. Nevus of Ota
2.3. Nevus of Ito
3. Other
3.1. Smooth muscle harmatoma
