The sensitivity of ultrasonography to detect adrenomegaly in dogs with HAC is high when using four weight categories. Most dogs with HAC (56.0%) had ultrasound findings consistent with either PDH or FAT however, EAA was commonly occurring in 39.6% of dogs with HAC. The sensitivity of ultrasound to detect adrenomegaly in dogs with HAC was 95.6%. Dogs were classified into four body weight categories, and those with HAC were also ultrasonographically classified as consistent with pituitary-dependent HAC (PDH), adrenal-dependent HAC (FAT), equivocal adrenal asymmetry (EAA), or normal adrenal thickness. Dorso-ventral adrenal gland thickness was ultrasonographically measured on the sagittal plane. The adrenal glands are glandular and neuroendocrine tissue adhering to the top of the kidneys by a fibrous capsule (Figure 17.6.1). The adrenal fatigue theory suggests that prolonged exposure to stress could drain the adrenals leading to a low cortisol state. When under stress, we produce and release short bursts of cortisol into the bloodstream. Precise reference intervals of adrenal gland thickness are required for detection of adrenomegaly in dogs with hyperadrenocorticism (HAC).Įighty-six clinically healthy dogs were prospectively included, and 91 dogs with untreated HAC were retrospectively evaluated. The adrenals are two small glands that sit on top of the kidneys and produce several hormones, among them, cortisol. Your adrenal glands, also known as suprarenal glands, are small, triangle-shaped glands that are located on top of each of your two kidneys.

Adrenal gl