A Case of Sarcomatoid Carcinoma of Auricular Skin Lesion / 대한이비인후과학회지

ABSTRACT

Sarcomatoid carcinoma is a biphasic tumor composed of squamous and spindle cell component, both of which are malignant. The diagnostic tool of sarcomatoid carcinoma is immunohistologic staining. The atypical cells react to be positive for vimentin and negative for S-100, desmin, carcinoembrionic antigen, smooth muscle actin. The primary cutaneous involvement of head and neck area is extremely rare. Therefore, it has been difficult to characterize the histognensis, biologic behavior, optimal treatment and prognosis. We experienced a case of a 24-years old female with sarcomatoid carcinoma at the auricular skin lesion, which has been treated successfully with wide excision of tumor and postoperative radiotherapy.