| NN | neonatal; nevocellular nevus; normally nourished; normal nutrition; nurse's notes |
|---|---|
| BCN | basal cell nevus; bilateral cortical necrosis |
| BCNS | basal cell nevus syndrome |
| B-K | initials of two patients after whom a multiple cutaneous nevus [mole] was named |
| BRBN | blue rubber bleb nevus |