[Approach to thyroid incidentaloma and follicular adenoma].

Recently, people are interested in health and many hospitals perform medical examinations flourishingly. They can choose the thyroid ultrasound optionally, too. Accordingly, a lot of thyroid incidentaloma are found. The leaving is not possible if thyroid incidentaloma is found. At first, I describe how we handle thyroid incidentalomas. Secondly, I describe the differential diagnosis of follicular adenoma and follicular carcinoma that we should call the last fort of thyroid medical practice. The latter is in particular a very difficult issue. I examined important articles closely from an enormous article and want to describe the management of these two disorders based on evidence by the present.