Brain 17 Vienna

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Natural History

•

CHORDOMA

–

5 yr and 10 yr DFS

70% and

45%

–

Recurrences may be noted

many years after treatment

–

Distant metastasis rare (6%

- 22%)

–

Metastasis higher in the

presence of recurrent

disease

–

At recurrence, 3-yr and 5-

yr OS ~

43% and 7%

CHONDROSARCOMA

–

More

indolent

and

associate with much more

favorable prognosis

–

10-yr local control and

disease specific survival

98-

99%

–

No relationship between

histological subtype and

grade

24/10/2017