The transmission of data from one computer to another, or from one device to another. A communications device, therefore, is any machine that assists data transmission.
In dogs, thyroid disease is almost always hypothyroidism. Hyperthyroidism (overactive thyroid) occurs in cats but is not typically seen in dogs. Unfortunately, an overactive thyroid in a dog is usually a sign of thyroid carcinoma, a cancerous thyroid tumor.
Signs usually do not show until late in the disease when the dog suffers from internal bleeding due to the tumor rupturing. The organ most frequently affected is the spleen, which can cause extreme blood loss, with the dog showing signs of shock such as sudden weakness, pale gums, and labored breathing.