Table 1.
Summary of CNS melanocytic lesions of our neurosurgery department since 2008
| Case | Gender | Age (yr.) | Location | Pathology diagnosis | Preoperative differentiation a |
|---|---|---|---|---|---|
| 1 | M | 46 | Left temporal | Intermediate-grade melanocytic tumor | - |
| 2 | M | 11 | Right temporal | Malignant melanoma | - |
| 3 | M | 45 | Right frontal | Malignant melanoma | Metastasis? Lymphoma? |
| 4 | F | 26 | Right parasellar | Malignant melanoma | Schwannoma? |
| 5 | F | 52 | Left frontal | Metastatic melanoma | - |
| 6 | M | 43 | Right temporal | Meningeal melanomatosis | Metastasis? Pleomorphic xanthoastrocytoma? |
| 7 | M | 47 | Right CPA | Meningeal melanomatosis | Epidermoid cyst? Cavernous hemangioma? |
| 8 | M | 24 | Right lateral ventricle | Amelanotic melanoma? | - |
| 9 | F | 19 | Left parietal | Melanocytoma | Meningioma? |
| 10 | F | 21 | Right frontal, para-falx | Recurrent melanocytoma, with subarachnoid dissemination | Recurrent melanocytoma |
| 11 | M | 38 | Right petrosal | Meningeal melanomatosis | Schwannoma? |
| 12 | M | 61 | Multiple | Melanocytoma with meningeal melanomatosis | Melanoma? Metastasis? |
| 13 | M | 20 | Left temporal | Malignant melanoma | - |
| 14 | M | 24 | Right cerebellar | Malignant melanoma | Cyst? |
| 15 | M | 47 | Foreman magnum | Malignant melanoma, with bone invasion | Meningioma? Melanoma? |
| 16 | M | 47 | Left middle fossa | Malignant melanoma | Hemangiopericytoma? Meningioma? Melanoma? |
| 17 | M | 45 | Intradural extramedullary, C2-T1 | Melanocytoma | Melanoma? Meningioma? |
| 18 | M | 31 | Right cavernous sinus | Melanocytoma | Melanoma? Cavernous hemangioma? Aneurysm? |
| 19 | M | 46 | Right middle fossa | Malignant melanoma, with bone and dura invasion | Meningioma? |
| 20 | M | 20 | Left pons | Malignant melanoma | Glioma? Meningioma? |
| 21 | F | 41 | Multiple, T6-L1 | Melanocytoma | Neurofibrosis? |
| 22 | F | 28 | Right parietal occipital | Malignant melanoma, with subarachnoid dissemination | - |
| 23 | F | 66 | Left frontal | Malignant melanoma | - |
| 24 | M | 27 | Right interspinous foramen, C6 | Melanocytoma | Melanoma? |
| 25 | M | 39 | Foramen magnum - C2 | Melanocytoma | Lipoma? |
| 26 | M | 36 | Right frontal | Melanocytoma, with subarachnoid dissemination and parenchyma invasion | Melanoma? Lymphoma? |
| 27 | M | 49 | Right cerebellar tentorium | Meningeal melanomatosis | Meningioma? |
| 28 | M | 17 | Left parasallar - CPA | Melanocytoma | Epidermoid cyst? |
| 29 | M | 26 | Medulla | Intermediate grade melanocytic tumor | - |
| 30 | M | 13 | Right cerebellar tentorium | Malignant melanoma | Meningioma? Hemangiopericytoma? |
| 31 | M | 47 | Left temporal | Malignant melanoma | - |
| 32 | M | 64 | Right frontal bone | Amelanotic melanoma, with bone invasion | Eosinophilic granuloma? Giant cell osteoma? Metastasis? |
M, male; F, female, yr., years old. aWith no clear preoperative diagnosis.