I have only seen a couple of chordomas over the years and have been able to have them succesfully removed. Gizmo the 3rd however was an exception. Two weeks after the chordoma was removed along with a part of his tail, a new one returned on his tail. At this point the vet no longer thought it was a chordoma but an aggressive strain of cancer. I shuddered at the thought of what might happen after the next surgery that removed the remainder of his poor little tailio . Sure enough, only a couple weeks after the last of his tail was removed, the lumps started to appear all over his hind end and he passed within the month quietly in his sleep. Has anyone seen this before? Kimberly Fox Somethin Up My Sleeve Ferret Rescue http://fuzzychat-n-rescue.com/SUMS-Rescue.html Pay Pal accepted for donations at this email address. [Posted in FML 7317]