356 DISEASES/DISORDERS
Expected Course and Prognosis
Lesions should resolve permanently if a primary cause can be identified and con-
trolled.
Most lesions wax and wane, with or without therapy; an unpredictable schedule of
recurrence should be anticipated.
Drug dosages should be tapered to the lowest possible level (or discontinued, if pos-
sible) once the lesions have resolved.
Lesions in cats with the inheritable disease may resolve spontaneously after several
months to years.
CEG (dog): lesions may be recalcitrant to medical intervention and require excision.
Fig. 23.1.Well-demarcated, erosive, and coalescing eosinophilic plaques on the ventral abdomen of a 6-
year-old male-castrate sphynx cat.
Fig. 23.2.Eosinophilic plaque on the neck of a 4-year-old DSH secondary to food allergy.