A case of amelanotic malignant melanoma of the maxillary sinus presented with intraoral extension

  • Farah Nadhirah
Publisher
Malaysian Journal of Medical Sciences, Universiti Sains Malaysia

Abstract

Melanoma of the sinonasal cavity has a high incidence of amelanotic presentation. Its diagnosis is difficult for clinicians and pathologists because of its hidden location and lack of pigmentation at the microscopic level. We reported a case of amelanotic melanoma of the maxillary sinus that showed aggressive extension to the oral cavity after extraction of the maxillary tooth. Histologically, the lesion resembled a plasmacytoid tumour. Diagnosis was made through the positive immunohistochemical staining for S100 and HMB-45

Extracted data

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