Abstract
We present a case of neurocutaneous melanosis in a 1-year-old child who presented with progressive quadriparesis created by an infiltrating extra-axial neoplastic melanin-producing tumor at the foramen magnum. This extensive intra-arachnoid mass filled the basal cisterns of the brain and surrounded the upper cervical cord. An imaging clue to the diagnosis was apparent as T1-weighted shortening on magnetic resonance in the pia and/or cortex of the cerebellar folia, suggesting the presence of melanin.
MeSH terms
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Cervical Vertebrae* / pathology
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Cervical Vertebrae* / surgery
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Diagnosis, Differential
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Foramen Magnum / pathology
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Foramen Magnum / surgery
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Humans
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Infant
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Laminectomy
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Melanins / metabolism*
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Melanoma / diagnosis
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Melanoma / pathology
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Melanoma / surgery
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Neuroectodermal Tumor, Melanotic / diagnosis*
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Neuroectodermal Tumor, Melanotic / pathology
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Neuroectodermal Tumor, Melanotic / surgery
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Spinal Cord Compression / diagnosis*
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Spinal Cord Compression / pathology
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Spinal Cord Compression / surgery
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Spinal Neoplasms / diagnosis*
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Spinal Neoplasms / pathology
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Spinal Neoplasms / surgery