Malignant Ocular Melanoma with Intradural Cervical Metastasis: Case Report and Literature Review

Abstract

Introduction The occurrence of malignant ocular melanomas is uncommon, and the association of these tumors with intradural extramedullary metastases in the cervical spine is exceptionally rare. Case Report A 62-year-old woman undergoing adjuvant chemotherapy after surgical treatment for malignant ocular melanoma begins to experience vertigo and headache. The condition evolved with walking difficulty and neck pain that was exacerbated by swallowing and mobilizing the neck. During her ocular melanoma follow-up, lesions suggestive of metastasis in the central nervous system were not evidenced until this moment. The physical examination did not show significant findings, and a cranial computed tomography scan was performed. The image showed a hyperdense lesion with postcontrast enhancement inside the vertebral canal, at the level of C1-C2. Spinal decompression and subtotal resection were performed. The anatomopathological report revealed intradural metastasis of a malignant ocular melanoma. The postoperative period was uneventful, with significant pain improvement and no recurrences. Conclusion Intradural extramedullary metastases are rare presentations of malignant ocular melanoma. In addition, less than ten similar cases have been reported in the literature. When caring for a patient with melanoma and neurological deficits, always consider evaluating central nervous system metastases. To evaluate this patient, a sensible and detailed neurological exam is extremely important to recognize the location of the deficits and guide the best approach, such as an indication for surgery.