16degus: Thanks for the affirmation. It helps to know I'm not the only one.
Yeah, heredity has the biggest amount to do with it. Although she's the only one in her line who's popped up tumors. I've repeatedly read that weight has been shown to be a factor in these things with rats. I'd agree with anyone who says it's never weight alone though. I'm sure it's the perfect storm scenario, where heredity starts it, environment fosters it, and the weight issue sends it over the edge.
I am seeing what you're talking about with diminished returns on quality of life with each surgery. It's almost like the removal of one just frees up resources to fuel the growth of the others.
She's so different from my Devon, who also came to me with a tumor of her own, but hasn't had a re-occurrence at all. Sigh.
@Vlad: I know what you mean, exactly. We worry about our babies. And as I said above, he may never have them because he just doesn't have a genetic predisposition for them. We'll keep our fingers crosses. Keep him on that diet though, and don't give in to his big brown eyes pleading that he's starving, oh no, starving mom! Just shake your finger at him and say it's for his own good. I'll be talking to the vet Monday and seeing what the options are. I'll let you guys know soonest.
Lilspaz: Ug. This morning the big one looks the size of a golf ball and formed under the nipple at her knee, not quite between her legs. It's growing SO fast. As in, a week and a half ago it wasn't noticeable.
She can still get around well enough, but it seems to be taking all of her nutrition. She eats like a hog and is loosing weight. She has a smaller one that's about the size of a cherry tomato, and it feels this morning like there may be another forming, the size of an apple seed.
I don't want to wait until she's miserable, but I honestly don't think she's healthy enough to handle surgery.