補塡素材を用いて前胸壁再建を行った縦隔脱分化型脂肪肉腫の1例

Mediastinal Dedifferentiated Liposarcoma Reconstructing Defected Chest Wall Using Prosthetic Materials：Report of a Case

はじめに　前胸壁（胸骨および肋骨）に進展する縦隔脱分化型脂肪肉腫に対し，腫瘍切除とともに前胸壁合併切除を行ったうえで胸壁欠損部に数種類の人工補塡物を用いての胸壁再建を実施後，長期に無再発で生存している症例を経験したので報告する．

Present case is a 74-year-old man, given a diagnosis of huge mediastinal dedifferentiated liposarcoma. Surgical complete resection of the tumor and involved anterior chest wall （all body of sternum and bilateral 3rd～5th rib） followed by reconstruction of the defected chest wall using three artificial prosthetic materials of putting titanium mesh plate between ePTFE mesh seat at inner （mediastinal） site and polypropylene mesh seat at outer site was perfomed. The patient is doing well without respirately failure and disease free even 6 years after surgery. This surgical procedure could be thought of effective treatment method in sense of preventing postoperative complication and preserving respiratory function.