Table 4.
Procedure Site | No. of Tumors | Total Local Recurrences | Average Time to Recurrence (mo) | Type
|
|
---|---|---|---|---|---|
Procedural | Satellite | ||||
Retroperitoneal | 75 | 12 (16) | 5.5 | 3/12 (25) | 9/12 (75) |
Superficial | 76 | 6 (8) | 1.1 | 0/6 | 6/6 |
Intraperitoneal | 39 | 2 (13) | 2.3 | 0/2 | 2/2 |
Bone | 34 | 1 (3) | 42* | 0/1 | 1/1 |
Head/neck | 27 | 5 (19) | 3.4 | 0/0 | 5/5 |
Total | 251 | 26 (10)† | 4.9 | 3/26 (12) | 23/26 (88) |
Values in parentheses are percentages.
The 42-month “average” time to recurrence is not an accurate depiction, as this value was derived from a single tumor.
Of the total 26 recurrences (10%), three of 251 were within initial tumor margins, for a local tumor progression rate of 1.2%.