a. Nevocellular nevus
Common types of nevocellular nevi
1. Junctional nevus
2. Compound nevus
3. Intradermal nevus

Specific types of nevocellular nevi
1. Giant congenital melanocytic nevus
2. Divided nevus
3. Melanonychia due to nevocellular nevus
4. Sutton nevus
5. Spitz nevus
6. Dysplastic nevus
7. Spotted grouped nevus
8. Balloon-cell nevus

b. Dermal melanocytic nevus
1. Blue nevus
2. Nevus of Ota
3. Acquired dermal melanocytosis
4. Mongolian spot

1. Epidermal nevus
2. Nevus sebaceus
3. Accessory mamma
4. Nevus comedonicus
5. Hair follicle nevus
6. Eccrine nevus
7. Apocrine nevus

1. Connective tissue nevus
2. Nevus lipomatosus cutaneous superficialis
3. Nevus cartilagineus
4. Smooth muscle hamartoma

1. Nevus spilus
2. Becker’s nevus
3. Nevus depigmentosus
4. Nevus anemicus

1. Neurofibromatosis type 1 (NF1)
2. Neurofibromatosis type 2 (NF2)
3. Tuberous sclerosis
4. Peutz-Jeghers syndrome
5. Incontinentia pigmenti
6. Sturge-Weber syndrome
7. Klippel-Trenaunay-Weber syndrome
8. Neurocutaneous melanosis
9. LEOPARD syndrome
10. Basal cell nevus syndrome
11.Von Hippel-Lindau syndrome
12. Phakomatosis pigmentovascularis
13. Osler’s disease
14. Blue rubber bleb nevus syndrome
15. Maffucci syndrome
16. Dyskeratosis congenita
17. Epidermal nevus syndrome
18. Cutis marmorata telangiectasia congenita