706 DISEASES/DISORDERS
Fig. 48.7.Erosions and loss of tissue on the concave surface of the pinna at the fold and on the mar-
gin (arrowheads). Lesions were due to a generalized ischemic dermatopathy and vasculitis, with hepatitis and
glomerulonephritis in a 6-year-old male-castrate Labrador retriever mix.
Fig. 48.8.Proliferative arteritis of the nasal philtrum in a 3-year-old female-spayed St Bernard. Note the
significant loss of tissue and ulceration in a linear pattern across the nasal planum.