Nicole -
Don't be sorry, and do please wail. That's what this place is for. Everyplace And those lesions should provide your positive diagnosis. Have your vet swab one and check it out. She'll see the blasto right there.
Here's what it looks like:
http://botit.botany.wisc.edu/toms_fungi/apr2007.html Everywhere is a blasto area, never doubt it. Humans truck it everywhere in landscaping projects, construction, dirt, mulch etc. Spring and fall are the prime seasons for infection.
There are only places that are more inhospitable to it than others. It's less likely to be found out west where there are fewer trees, less dirt, water and leaves, but one of our most helpful cases was Gunner from Texas. Her owner was told that there's no such thing as Blasto in Texas. The vet was wrong. She most likely got it from bad mulch, as my Dirtbike did.
Dirtbike was in the same shape as your Parker when diagnosed by a slide taken from a lesion. She's now 4 years old, and no sign of illness in the last 2 and 1/2 years. It was hard, but she pulled through.
Gunner fought the good fight and beat it after a year, but by that time it had devastated her kidneys, and she passed. But her story helped us saved so many others. So stick with us, and even bring your vet here if she's serious about this. I think she'll find it interesting and helpful.
Best-
jen