My 2.5 year old lab/chow mix has been to the vet three times with no definitive diagnosis yet. I am concerned about Blasto, but the vet suspects cancer.
He has two skin lesions that have not healed over several weeks and a swollen muzzle. I first took him in two weeks ago Tuesday because he wasn't eating like he should, was lethargic and depressed. The first vet said the muzzle was an allergic reaction and the lesions were staph. Gave a cortizone shot and Keflex.
Lesions were no better by Saturday. Took him to a new vet, who said the muzzle was normal, but found a swollen lymph node on his leg. Said to discontinue the Keflex, gave Benadryl instead.
By Friday, no improvement, and the lesions seemed worse. He's tired, depressed, no energy, and now his neck has a swollen lymph node. I took him to the vet a third time, who took fine needle aspirates of both lymph nodes in the back legs and in the neck. He said it looked like lymphoma to him, but he'd send it off to cytology at the university to be sure.
Here's my question: with all these symptoms, specifically the lesions, I'm worried about Blasto. We live in an endemic state, near water and recently planted a garden with foreign soil and mulch. My fear is that if it is Blasto, it won't show up in the lymph node cytology. Does anyone know anything about that? Is there anything else I should be looking for? I'm so concerned that the symptoms for lymphoma and for Blasto are so similar that I don't want the vet to miss it. He was already misdiagnosed twice, and I don't want to waste time in either circumstance.
Does anyone have any ideas on what I can do? Thank you so much. I love my dog, and I want to do anything I can to save him.