心膜合併切除により摘出した前縦隔原発脱分化型脂肪肉腫

Mediastinal Dedifferentiated Liposarcoma Resected with Partial Resection of Pericardium

脂肪肉腫は多くが後腹膜や四肢に発生し，縦隔原発の報告はまれである1）．われわれは前縦隔に発生した脂肪肉腫に対し，心膜合併切除を行い摘出した1例を経験したので報告する．

An anterior mediastinal tumor was detected by computed tomography （CT） in a 66-year-old man who complained of left flank pain, and the surgical treatment was performed. At surgery, partial resection of the pericardium was also conducted because the pericardial inversion was suspected. The histopathological diagnosis was dedifferentiated liposarcoma. The patient is well without adjuvant chemotherapy 23 months after the surgery.