原发于椎管内的黑色素瘤十分罕见,自1906年首次发现以来,国内外均只见散在报道。有学者认为此病多发于中下段胸椎,而部位在髓内的较髓外硬膜下较少[1]。我院于2014年收治1例,现报道如下。患者男,50岁,因“左下肢进行性乏力、跛行2年余”入院。患者2年前觉左下肢麻木、乏力,时伴胸背部疼痛,多次就诊当地医院,以“腰椎病”治疗,症状无好转,且出现跛行,遂在外院行MRI检查,发现“T7~T12椎管内占位性 Primary melanoma in the spinal canal is very rare, since the first discovery in 1906, both at home and abroad have seen only scattered reports. Some scholars believe that the disease mainly in the lower thoracic spine, and the site in the medullary inferior medulla oblongata less [1]. 1 case admitted to our hospital in 2014, are reported below. Male patient, 50 years old, because of ”left lower extremity progressive weakness, limp more than 2 years “ admission. 2 years ago, the patient felt left leg numbness, fatigue, when accompanied by chest and back pain, multiple visits to the local hospital to ”lumbar disease“ treatment, the symptoms did not improve, and the limp, then outside the hospital MRI, found that ” T7 ~ T12 spinal canal space occupying