The association of melanoma with a preexisting nevus is still a debated subject. Histopathological data support an associated nevus in approximately 30% of all excised melanomas. The annual risk of an individual melanocytic nevus becoming malignant is extremely low and has been estimated to be approximately 0.0005% (or less than 1 in 200,000) before the age of 40 years, to 0.003% (1 in 33,000) in patients older than 60 years. Current understanding, based on the noticeable, small, truly congenital nevi and nevi acquired early in life, is that the first develops before puberty, presents with a dermoscopic globular pattern, and persists for the lifetime, becoming later a dermal nevus in the adult. In contrast, acquired melanocytic nevi develop mostly at puberty and usually undergo spontaneous involution after the fifth decade of life. The purpose of this review is to analyze the data of the literature and to propose, on the basis of epidemiological and clinical-dermoscopic characteristics, a new model of melanogenesis of nevus-associated melanoma.

Is There More Than One Road to Nevus-Associated Melanoma?

Vezzoni, Roberta
Writing – Original Draft Preparation
;
Conforti, Claudio
Membro del Collaboration Group
;
Vichi, Silvia
Membro del Collaboration Group
;
Retrosi, Chiara
Membro del Collaboration Group
;
Magaton-Rizzi, Giovanni
Membro del Collaboration Group
;
Di Meo, Nicola
Membro del Collaboration Group
;
Pizzichetta, Maria Antonietta
Membro del Collaboration Group
;
Zalaudek, Iris
Supervision
2020-01-01

Abstract

The association of melanoma with a preexisting nevus is still a debated subject. Histopathological data support an associated nevus in approximately 30% of all excised melanomas. The annual risk of an individual melanocytic nevus becoming malignant is extremely low and has been estimated to be approximately 0.0005% (or less than 1 in 200,000) before the age of 40 years, to 0.003% (1 in 33,000) in patients older than 60 years. Current understanding, based on the noticeable, small, truly congenital nevi and nevi acquired early in life, is that the first develops before puberty, presents with a dermoscopic globular pattern, and persists for the lifetime, becoming later a dermal nevus in the adult. In contrast, acquired melanocytic nevi develop mostly at puberty and usually undergo spontaneous involution after the fifth decade of life. The purpose of this review is to analyze the data of the literature and to propose, on the basis of epidemiological and clinical-dermoscopic characteristics, a new model of melanogenesis of nevus-associated melanoma.
Pubblicato
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7190536/
File in questo prodotto:
File Dimensione Formato  
dp1002a28.pdf

accesso aperto

Tipologia: Documento in Versione Editoriale
Licenza: Creative commons
Dimensione 212.09 kB
Formato Adobe PDF
212.09 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2966332
Citazioni
  • ???jsp.display-item.citation.pmc??? 4
  • Scopus 3
  • ???jsp.display-item.citation.isi??? 4
social impact