Growth Hormone Responsive Dermatosis causes symmetrical baldness along trunk with increased pigmentation. (lowchensaustralia.com)
Allergy or sensitivity whereby eosinophilic granuloma and flea allergy dermatitis can both ultimately lead to areas of granulomatous dermatosis (wagwalking.com)
(1) Kwochka, KW: Food - Related Dermatoses in Dogs and Cats. (dog-health-guide.org)