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Year : 2021  |  Volume : 16  |  Issue : 1  |  Page : 159-163

Recurrent meningeal melanocytoma of cervical spine: A rare case

1 Department of Histopathology, Sahyadri Speciality Hospital, Pune, Maharashtra, India
2 Department of Neurosurgery, Sahyadri Speciality Hospital, Pune, Maharashtra, India

Correspondence Address:
Dr. Manish Sitaram Sabnis
B101, Laburnum Park, Magarpatta City, Hadapsar, Pune - 411 013, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.AJNS_327_20

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Melanocytomas of the central nervous system are rare benign or intermediate grade localized melanocytic tumors. Despite its benign nature, it can follow a locally aggressive course with propensity to recur. We present the case of a 29 years old female who presented with a recurrent lesion in cervical spine and rapidly progressing quadriparesis. On examination, there was loss of power in right-sided extremities and reduction in sensations in left-sided extremities. Magnetic resonance imaging spine revealed a homogeneously enhancing intradural extramedullary dumbbell-shaped mass lesion at C4/5 level with extension through right C4 neural foramina to the extraforamina space, causing severe spinal cord compression. Intraoperatively, bluish-colored tumor was identified along with underlying hematoma. Gross total excision of the tumor was done. Tumor was received in the histopathology department in multiple black-colored fragments. Microscopically, a heavily pigmented tumor was seen with the sheets and nodules of polygonal cells with large nuclei and prominent nucleoli. Differentials considered were meningeal melanocytoma and malignant melanoma. On immunohistochemistry, the tumor cells showed diffuse positivity for HMB 45 and S100. Ki 67 index was around 1%. On radiological review, the tumor was fairly well circumscribed and did not infiltrate the adjacent tissues. There was no evidence of any lesions elsewhere in the body. Considering these features, the tumor was diagnosed with meningeal melanocytoma. Postoperatively, there was significant immediate improvement in quadriparesis and patient could walk with minimal support.

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