
Hi my oldest Golden had a mammory tumour removed at age 9 and a half, with a mammory strip and spey, no problems she did very well and is still going strong had her 12th birthday on 19 December. The test results showed that it WAS malignant but at an early stage and no problems since then. My dad's Collie at 12 and a half has just had a mammory lump removed, no test results but she came through the op very well and no problems since. Good luck
Jan