Melanosis, melanocytic hyperplasia, and primary malignant melanoma of the nasal cavity

Abstract

A primary multifocal intranasal malifnant melanoma is reported in a 54-year-old black female. Diffuse pigmentation (melanosis) of nasal and maxillary sinus mucosa corresponds histologically to hyperplasia of dendritic melanocytes, from which cells the tumor is considered to originate.