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Table 5 Extent of tumor removal according to histological structure

From: Endoscopic endonasal transclival removal of tumors of the clivus and anterior region of the posterior cranial fossa (results of surgical treatment of 140 patients)

Extent of tumor removal

Number of cases

Chordomas (ngen = 103)

 Total

68

 Subtotal

25

 Partial

10

Meningiomas (ngen = 12)

 Total

1

 Subtotal

5

 Partial

5

 Insufficient

1

Pituitary adenomas (ngen = 9)

 Total

6

 Subtotal

1

 Partial

2

Fibrous dysplasia (ngen = 4)

 Total

2

 Subtotal

2

Cholesteatomas (ngen = 3)

 Total

1

 Subtotal

2

Craniopharyngiomas (ngen = 2)

 Total

1

 Subtotal

1