I dont believe the doc told us which specific disease the dog had...
I did a quick search, I am sure there is probably more but these two should be enough of a deterrent
Histoplasmosis
Systemic disease caused by H. capsulatum, which is found in soil with high concentration of fecal material of chickens, pigeons and bats
Endemic areas are the valleys of Ohio, Missouri, and Mississippi rivers
Occurs as an intracellular yeast and is seen best on silver stain
Farmers, construction workers, and people who enjoy outdoor activities are the most at risk by inhaling spores
1 in 2000 people will develop chronic pulmonary disease
Most cases of primary histoplasmosis are asymptomatic or mild flu-like syndrome
Progressive pulmonary disease associated with chronic lung disease occurs in middle-aged men
CXR demonstrates dense nodules with central calcification
Chronic cavitary histoplasmosis is less common
Mediastinal histoplasmosis results in fibrosing mediastinitis, which is the most frequent benign etiology of SVC obstruction
Healed histoplasmosis causes a solitary pulmonary nodule, which can be confused with carcinoma
Cryptococcosis
Caused by C. neoformans, found in soil contaminated by pigeon droppings
India ink staining reveals round, budding yeast which has gelatinous polysaccharide capsule
Primarily involves the bronchopulmonary tree, with special predilection for the meninges
Lesions often involve the lower lobes and are solid
Amphotericin B and 5-fluorocytosine are both effective medical treatment
Always examine CSF if C. neoformans is isolated from sputum or surgical specimen
10% of patients develop cryptococcal meningitis after resection of a pulmonary lesion
cheers'
Av