恶性黑色素瘤是一种来源于皮肤,能产生黑色素的高度恶性肿瘤。多见于皮肤,粘膜少见,原发于上颌窦粘膜者更少见。笔者在工作中曾见过1例,现报道如下:患者,男,57岁。因长期鼻塞,曾诊为鼻息肉。四天前无诱因突发张口不灵活,逐渐加重,伴有咽痛、吞咽困难;无畏寒、发热现象于1996年1 Malignant melanoma is a highly malignant tumor that originates from the skin and produces melanin. More common in the skin, mucosal rare, primary in the maxillary sinus mucosa are even more rare. I have seen in the work of a case, are now reported as follows: Patients, male, 57 years old. Due to long-term nasal obstruction, had been diagnosed with nasal polyps. Four days ago, there is no incentive for sudden mouth opening is not flexible, and gradually increased, accompanied by sore throat, swallowing difficulties; no chills, fever in 1996 1