Malignant amelanotic melanomas of the nasal septum and maxillary sinus.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D008443:Maxillary Sinus; D008545:Melanoma / Q000473:pathology; D009300:Nasal Septum; D009669:Nose Neoplasms / Q000473:pathology; D010255:Paranasal Sinus Neoplasms / Q000473:pathology