Hi Customer (name blocked for privacy),
Sorry for your loss. Your upset is understandable when things happen this fast. From my perspective, I think there were some unfortunate decisions and unsubstantiated conclusions involved that aggravated the situation, possibly.
Blastomycosis (blasto for short?) is a common soil born fungus, transmitted either by contact through a skin wound, or inhaled. It can produce lung lesions when inhaled, or skin lesions from the other route.
It resembles a dozen other fungal lung lesions on x-ray, which means it can not be definitely diagnosed by radiographic imaging. That it is likely a fungal disease, yes. Blasto, no. It is only positively diagnosed by culture, which is either by biopsy of a skin or lung lesion, or on post mortem exam, which is the usual way it is diagnosed. Presumptive diagnosis may be made by consecutive serum samples, taken over a period of time to demonstrate an increase in the dogs serum antibody level to blasto. This is almost, but not quite, 100% accurate, and takes several weeks to accomplish at best.
Development of the disease is quite variable, and may show a host of signs during development, such as sneezing, coughing, loss of condition and activity. All occurring before respiratory distress appears. We are talking months of development.
Treatment of fungal diseases is drawn out and utilizes the strongest of antimicrobial drugs. Success in treatment is not guaranteed, partly because of the intensity and extent of the infection at start of treatment, especially when started at a later stage of the disease.
Now, as for the events recently. The first vet would be operating only on speculation to suggest a chest x-ray based on persistant cough and limping at a first visit. It was an unfortunate, but understandable decision at that time. Pulmonary fungal diseases are not common enough to x-ray all coughing dogs, limp or not. Granted, many conditions go undiagnosed at initial visits, but clients would not put up with the expense of our present level of technology to explore all possibilities in depth.
Requests for such testing done at recheck visits when the conditions are not better are not received much more enthusiastically, but can be justified more easily.
I hope you realize I am trying to explain circumstanses, not excuse them. As the people at the emergency clinic noted, things were too developed to change the inevitabile outcome. Your dog had been infected some months before, and, understandable, you had no cause to have him examined before signs developed. The kennel stay was an inconsequential event.
In the deserts of Southern Arizona and California there is a fungus causing Valley Fever. It is common, as fungal diseases go here in Phoenix. Animals and humans catch it, simply from the dust that occasionally fills the air. But we still find cases that are fairly well developed before we discover it. If suspicious, we draw a blood sample. If really suspicious, we do an x-ray in addition to the blood. And, when showing on x-ray, we will probably recommend starting treatment without a positive diagnosis. In your case, all this would have been to no avail.
If you wish to pursue this farther, the State Board of Veterinary Examiners keeps records of veterinarians in the state, and any complaints or suits against them.
But I do hope you consider whether anyone was really at fault in this truely unfortunate situation.
If you have any further questions, please feel free to ask.
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