Large congenital melanocytic nevus
What is Large congenital melanocytic nevus?
A large, or giant, congenital melanocytic nevus (LCMN or GCMN) is a pigmented skin lesion of more than 20 cm - or 40 cm- respectively, projected adult diameter, composed of melanocytes, and presenting with an elevated risk of malignant transformation.
Other condition names
- Congenital pigmented nevus
- GMN
- Giant congenital melanocytic nevus
- Giant pigmented hairy nevus
- LCMN
Inheritance type
Not applicable
Prevalence
- Europe: 1-9 in 100,000
Age of Onset
- Infancy
- Neonatal
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