本病发生在鼻粘膜者极为少见,且预后多不良。病人多因鼻阻、鼻衄而求治,惜就诊时多已进入晚期。身体远处转移虽不多见,但任何脏器均有受累的可能。有人统计,每年十万人口中约有2例。Conley氏报告发生于头颈部的黑色素瘤约为20%。鼻粘膜的恶性黑色素瘤据各家报道自0.5%—2.7%。 The disease occurs in the nasal mucosa is extremely rare, and the prognosis is poor. Most patients suffer from nasal obstruction and runny nose and seek treatment. Unfortunately, many patients have entered the late stage of treatment. Although distant metastases are rare, any organ may be involved. According to statistics, there are approximately 2 cases of 100,000 people each year. Conley reported melanomas occurring in the head and neck of about 20%. Malignant melanoma of the nasal mucosa is reported from 0.5% to 2.7% according to various reports.