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Table 1 Summary of CNS melanocytic lesions of our neurosurgery department since 2008

From: Intracranial amelanotic melanoma: a case report with literature review

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?

  1. M, male; F, female, yr., years old. aWith no clear preoperative diagnosis.