患者,男,47岁。因咽部干灼感1年于1987年7月就诊。检查:咽稍充血,口咽后壁淋巴细胞少许增生。鼻咽右隐窝见一腐败状假膜样物。采取活检组织时发现假膜下为一肿块,约0.5×0.4 cm大小,表面棕褐色粗糙糜烂,间有少许肉色样组织,边界不甚清楚;质脆,无出血表现。病理诊断为“恶性黑色素细胞瘤”(黑色素染色阳性)。头颈 Patient, male, 47 years old. Suffered from dry throat burning for 1 year in July 1987. Examination: A little congestion in the pharynx, a little proliferation of lymphocytes in the posterior wall of the oropharynx In the right crypt of the nasopharyngeal, a spoiled pseudomembrane-like substance was seen. The biopsy tissue was found to be a mass under the pseudomembrane, about 0.5 × 0.4 cm in size, the surface of the brown rough and eroded, there is a little meat-like organization, the border is not clear; crisp, no bleeding. The pathological diagnosis was “malignant melanoma” (positive melanin staining). neck