초록
Myoepithelioma of the trachea is an extremely rare disease. The neoplasm shows histologic features identical to those described in myoepithelioma of salivary glands. The myoepithelioma cells demonstrate the numerous myofilament, desmosomal cellular attachment, cytoplasmic glycogen and pinocytotic vesicles. In immunohistochemical study, myoepithelioma cells show the positive antibody reactions to actin, keratin, vimentin and S-100 protein. A case of myoepithelioma arising from trachea in the seventy-two-year old male diagnosed by microscopic finding and immunohistochemistry is presented.