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Table 1 Characteristics of skull base chordoma patients

From: DNA methylation, combined with RNA sequencing, provide novel insight into molecular classification of chordomas and their microenvironment

Number of patients

n = 32

Sex

Females

15/32 (47%)

Males

17/32 (53%)

Age [years; median (range)]

60 (23–76)

Skul base location

 

Clivus

21/32 (65.6%)

Clisvus and craniovertebral junction

11/32 (34.4%0

Surgery type

 

Endoscopic endonasal

31/32 (96.9%)

Craniotomy

1/32 (3.3%)

Gross resection rate

 

Complete

11/32 (34.4%)

Subtotal

16/32 (50%)

Partial

5/32 (15.6%)

Recurrence status

 

Newly diagnosed

22/32 (69%)

Recurrent

10/32 (31%)

Tumor size—max. diameter [mm; median (range)]

8,5 (1–17)

Histological type

 

Classical chordoma

32 (100%)

Death status

 

No

19/32 (59%)

Yes

13/32 (41%)

Follow up [months—median (range)]

38 (6–97)