Inada Hidehiro, Maeda Junichi, Ito Tetsushi, Ikeda Norihiko
Department of Thoracic Surgery, Ageo Central General Hospital, Ageo, Japan.
Kyobu Geka. 2020 Sep;73(9):716-719.
Hourglass transmural lipomas are rare. A 79-year-old male was referred to our hospital due to an abnormal shadow incidentally found on a chest X-ray 6 years ago. Chest computed tomography and magnetic resonance imaging revealed a well-defined fatty mass like an hourglass, penetrating the right 4th intercostal muscle. The tumor tended to grow slightly and we considered the possibility of well-differentiated liposarcoma. We performed a complete resection of the tumor with partial resection of the 5th rib with the assist of thoracoscopy. The chest wall was reconstructed using an expanded polytetrafluoroethylene (ePTFE) sheet. The tumor was 55×52×47 mm in size and histologically diagnosed as an intermuscular lipoma. Thoracoscopy was useful to determine the excision line.
沙漏状透壁脂肪瘤很罕见。一名79岁男性因6年前胸部X线偶然发现异常阴影转诊至我院。胸部计算机断层扫描和磁共振成像显示一个边界清晰的沙漏状脂肪块，穿透右侧第4肋间肌。肿瘤有轻微生长趋势，我们考虑了高分化脂肪肉瘤的可能性。在胸腔镜辅助下，我们对肿瘤进行了完整切除，并部分切除了第5肋骨。使用膨体聚四氟乙烯（ePTFE）片重建胸壁。肿瘤大小为55×52×47mm，组织学诊断为肌间脂肪瘤。胸腔镜有助于确定切除线。
