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鼻腔原发恶性黑色素瘤极罕见,作者报道了3例,均为男性。例1,75岁,因左鼻塞入院,MRI见肿瘤位于左下鼻甲,T_1WI信号比鼻粘膜高,T_2WI呈轻度低～等信号,增强T_1WI上信号强化。手术切除后病理见有大型核,有核小体的上皮细胞高度增生,胞体内有大量褐色素,诊断恶性黑色素瘤。例2,83岁,因右鼻塞、鼻漏入院,MRI见右鼻腔内肿瘤,T_1WI高信号,T_2WI低信号,浸润下鼻甲,病理学见大型异型核,含大量黑色素,诊断恶性黑色素瘤。例3,61岁,因左鼻出血入院,MRI见左鼻腔内肿瘤,
Nasal primary malignant melanoma is extremely rare, the authors reported in 3 cases, all men. Example 1,75 years old, admitted to the left nasal obstruction, the tumor was located in the left lower turbinate MRI, T_1WI signal higher than the nasal mucosa, T_2WI was mildly low ~ and other signals to enhance signal enhancement T_1WI. Surgical resection pathology see large nuclei, nucleosomes of epithelial cells highly hyperplasia, there are a large number of cell body brown pigment, the diagnosis of malignant melanoma. Example 2,83 years old, due to the right nasal obstruction, rhinorrhea admitted to the hospital, MRI see the right nasal tumor, T_1WI high signal, T_2WI low signal, infiltration of the inferior turbinate, pathology see large abnormal nuclei, with a large number of melanoma, the diagnosis of malignant melanoma. Example 3,61 years old, left nasal hemorrhage admitted to the hospital, MRI see the left nasal tumor,