Kimura's disease is a benign chronic inflammatory condition with good prognosis, commonly involving the head and neck area. With regard to thoracic manifestation, however, the information contained in the literature is limited. The diagnosis of Kimura's disease on the basis of imaging is difficult, especially in thoracic cases manifesting as lymphadenopathy. The purpose of this report is to illustrate and discuss a thoracic case of the disease manifesting as lymphadenopathy.