Brasil
Brasil
Dermatological diseases are the most frequent causes of veterinary appointments in the world. Hyperadrenocorticism is caused by the chronic excess of circulating endogenous or exogenous glucocorticoids, resulting in a set of physical and biochemical changes. Hypothyroidism is caused by imbalance in any part of the hypothalamic-pituitary-thyroid axis. These endocrinopathies cause bilaterally symmetrical alopecia and other skin disorders. The aim of this study was a dog, male, Yorkshire breed, which the presence of chronic dermatological alterations was reported. In the physical examination, bilaterally symmetrical alopecia, bilateral otitis and pyoderma were observed. Complementary laboratory tests required were: microbiology, parasitology, serum biochemistry and histopathology of the skin. Among other findings, the histopathological findings showed alterations suggestive of hormonal dermatosis: oto keratotic hyperkeratosis, sebaceous glands atrophy and hair follicles. The definitive diagnosis was obtained by combination of the complementary tests and clinical signs presented for the patient. So, it is clear the importance of using complementary laboratory tests such as histopathology and serum biochemistry combined with a correct clinical approach.
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