Sinonasal Melanoma: A Case Report and Literature Review

Table 1

Comparison between malignant skin melanoma and mucosal melanoma.

Characteristics	Skin	Mucosal
Tissue of origin	Skin	Mucosal surface
Mean age [17]	50 years	60 years
Clinical condition	<1/3 with advanced disease	>50% with advanced disease
Amelanotic appearance	1.8–8.1% [6]	20–25% [18, 19]
Risk factor	Sun exposure	Unknown
Ethnic group	White: 94%	White: 85%
	Black: 0.8%	Black: 7%
Adjuvant radiotherapy	Not recommended	Local control