Ultrasound examination, also called sonography, is an imaging, radiation-free and painless examination procedure based on ultrasound and free of side effects. It is the most important method for the early detection of pathological, structural changes such as enlargements, nodules or cysts. These can be measured with millimeter precision and accuracy. The course after surgical interventions can also be very well controlled by ultrasound.
In the ENT field, this procedure is used, for example, for more precise clarification of the thyroid gland, salivary glands or paranasal sinuses.
The ultrasound examination is often combined with a fine needle puncture. For this purpose, tiny pieces of tissue, e.g. from the thyroid gland, are taken with the help of a thin hollow needle during the ultrasound examination. A special laboratory evaluates the tissue samples. These are then used to advise the patient.