Rottweiler crossbred dog with nasal aspergillosis.

Rottweiler crossbred dog with nasal aspergillosis. A Rottweiler crossbred dog with nasal aspergillosis due to Aspergillus fumigatus infection. Note the loss of pigment below the nostril on the worst affected side - this finding is suggestive of a diagnosis of chronic nasal aspergillosis in the dog.