• World Neurosurg · Aug 2020

    Review Case Reports

    The spinal metastatic melanoma with unknown primary lesions presenting as radiculopathy:Case report and literature review.

    • Shenghui Tang, Junhua Zuo, Haonan Zhang, Zhanglin Wu, and Biru Liang.
    • Department of Orthopaedics, the Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China.
    • World Neurosurg. 2020 Aug 1; 140: 320-324.

    BackgroundMetastatic malignant melanoma of the spine is rare, while the spinal metastatic melanoma with unknown primary lesions presenting as radiculopathy is even rarer. Summarizing and analyzing this disease can provide insight into disease development and allow optimization of clinical management.Case DescriptionA 55-year-old male patient was admitted to our institution presenting with lower back pain that had persisted for 3 years. It was aggravated, with radiating pain in bilateral lower extremities lasting 2 weeks. Neurologic examination revealed bilateral L5 motor deficit with paresis. Radiologic findings showed an irregularly destructive lesion of the L5 vertebral body, and the lesion extended dorsally, obstructing the spinal canal. The patient underwent complete resection of the L5 vertebral tumor with titanium mesh implantation and posterior fusion and instrumentation from L3-S2. The pathologic diagnosis after surgery was malignant melanoma. No obvious primary lesion was detected anywhere on the skin surface, mucosa, and retina. A postoperative positron emission tomography-computed tomography scan of the whole body displayed no abnormal uptake in other parts of the body. However, the patient didn't receive any chemotherapy or radiotherapy. Five months after operation, the tumor recurred and metastasis was detected in other sites.ConclusionsAlthough spinal metastatic melanoma with unknown primary lesions presenting as radiculopathy is rare, effective management and treatment of these patients remains an important challenge for surgeons. Surgical resection can alleviate patients' chief complaints and improve their quality of life. However, it may not prolong the survival period and improve the prognosis. Postoperative radiotherapy and/or chemotherapy may be needed.Copyright © 2020 Elsevier Inc. All rights reserved.

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