
Unfortunately a friend in her last litter had a 10 week old pup back as it had what was thought to be a small wound on his hind quarter, (they have very thick coasts so it would have gone unnoticed for weeks) that didn't respond to antibiotics and was found to be a Mast Cell tumour.
It was removed a few weeks later with good margins and was tested as a grade 1.
He's now 6 months old in his new home.