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Malaysian Journal of Medical Sciences
School of Medical Sciences, Universiti Sains Malaysia
ISSN: 1394-195X
Vol. 22, No. 5, 2015, pp. 89-92
Bioline Code: mj15062
Full paper language: English
Document type: Case Report
Document available free of charge

Malaysian Journal of Medical Sciences, Vol. 22, No. 5, 2015, pp. 89-92

 en A Case of Amelanotic Malignant Melanoma of the Maxillary Sinus Presented with Intraoral Extension
Singhvi, Abhishek & Joshi, Ashish


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. Keywords:, ,,

maxillary sinus; amelanotic melanoma; oral cavity; immunohistochemistry

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