비부비동 미분화암의 두개안면절제술 후 전완부자유피판을 이용한 뇌 척수액 유출 폐쇄 시행 1례

A Case of Cerebrospinal Fluid Leakage Repair with Forearm Free Flap after Craniofacial Resection of Sinonasal Undifferentiated Carcinoma

A 37 year-old male presented with sudden right proptosis and bilateral nasal obstruction. A huge tumor was noted in bilateral nasal cavities, ethmoid sinuses and central frontal sinus on magnetic resonance imaging. Right posterior frontal sinus wall and bilateral medial orbital wall was destructed by the tumor. Complete resection of the tumor was performed via minimal invasive craniofacial resection. Histopaghologic examination revealed sinonasal undifferentiated carcinoma (SNUC). Cerebrospinal fluid leakage was developed after 2 days of the surgery. On the 5th day, anterior skull base was reconstructed with forearm free flap (FFF). The patient got 6000cGy of radiotherapy and survived in 27 months of follow up.