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Related Experiment Video

Updated: Feb 19, 2026

Implantation and Evaluation of Melanoma in the Murine Choroid via Optical Coherence Tomography

Implantation and Evaluation of Melanoma in the Murine Choroid via Optical Coherence Tomography

Published on: December 2, 2022

Congenital melanocytic naevi.

Ivanka Kovalyshyn¹, Ralph Braun, Ashfaq Marghoob

¹Dermatology Service, Memorial Sloan-Kettering Cancer Center, New York, USA.

The Australasian Journal of Dermatology

|November 18, 2009

Summary

Congenital melanocytic naevi (CMN) are skin growths present at birth, sometimes appearing later. They pose psychosocial issues and increase risks for melanoma and neurocutaneous melanocytosis, requiring individualized management.

Area of Science:

Dermatology
Oncology
Genetics

Background:

Congenital melanocytic naevi (CMN) originate from melanocyte clusters during fetal development.
While often visible at birth, CMN can manifest later due to variations in melanocyte activity.
These naevi present cosmetic concerns and significant health risks, including various forms of melanoma and neurocutaneous melanocytosis.

Purpose of the Study:

To summarize the clinical presentation, associated risks, and management considerations for congenital melanocytic naevi.
To highlight the relationship between naevus characteristics and specific associated malignancies.
To emphasize the need for personalized patient management strategies.

Main Methods:

Review of existing literature on congenital melanocytic naevi.

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Analysis of the correlation between naevus size/number and associated risks.

Synthesis of current understanding regarding clinical manifestation and management.

Main Results:

The risk of malignancy associated with CMN is influenced by naevus size.
Neurocutaneous melanocytosis risk is strongly correlated with the number of satellite naevi.
Management requires individualized assessment of naevus features and patient risk factors.

Conclusions:

Congenital melanocytic naevi necessitate tailored management plans.
Accurate risk assessment for melanoma and neurocutaneous melanocytosis is crucial.
Setting realistic expectations for aesthetic and functional outcomes is vital during treatment planning.