Vol. 2, Issue 1, Part A (2020)

The malignant melanoma of the nasal cavities is a rare tumor characterized by an absence of specific clinical signs but confirmed by the contribution of immunohistochemistry. However, poor prognosis remains, requiring a complex radiosurgical support. We present a case of malignant melanoma in a 48 years old male patient, chronic smoker, who is consulting for a nasal obstruction left unilateral evolving for 18 months complicated by anosmia and epistaxis repeatedly. The anterior rhinoscopy objectified a blackish fleshy polypoid mass at the expense of the nasal septum and the bottom left turbinate. The facial CT scan showed an aggressive tumor of the left nasal cavity with lysis of the upper maxilla. A biopsy of the mass had been done. The anatomopathological examination supported by the immunohistochemistry confirmed the diagnostic of malignant melanoma of the nasal cavity. The treatment featured a surgery by the paralateronasal way with large excision and followed by adjuvant radiotherapy. An endoscopic control after 6 months was done marking the satisfying evolution without any sign of local recurrence.