Abstract
Endocrine diseases in the dog commonly manifest with dermatological lesions. Hypothyroidism
is the most common endocrinopathy and usually presents with alopecia in areas of wear,
seborrhea, and recurrent infections. Common clinical signs associated with hyperadrenocorticism
include polyuria, polydipsia, and polyphagia. The most common dermatological manifestation
of hyperadrenocorticism is bilaterally symmetrical alopecia sparing the head and distal
extremities. Pyoderma is a common finding associated with immunosuppression. Less
commonly, calcinosus cutis may occur. Sex hormone excess, primarily hyperestrogenism
and hyperandrogenism, may also be associated with dermatological signs. Usually, dogs
are intact, and the excess production is due to testicular or ovarian neoplasia.
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