Nakano Jun, Ikeda Toshihiro
Department of General Thoracic Surgery, Sakaide City Hospital, Sakaide, Japan.
Kyobu Geka. 2017 Nov;70(12):1033-1036.
A 16-year old young man was referred to our hospital due to abnormal mass of mediastinum on chest radiography. Chest computed tomography scan revealed 45 mm mass in diameter with low density areas and ring shaped calcification at right upper mediastinum. However, chest magnetic resonance imaging showed no existence of fat nor calcification. Although no typical findings was observed, surgical resection was performed because mature cystic teratoma was undeniable. At complete video-assisted thoracoscopic surgery, tumor was found to be in the upper mediastinum covered with mediastinal pleura and with dense fibrous structures around it, and was resected with surrounding fat tissue. Histological diagnosis was hemangioma associated with lymphangiogenesis and arteriovenous malformation-like region in the surrounding fat tissue.
一名16岁青年因胸部X线检查发现纵隔异常肿块而被转诊至我院。胸部计算机断层扫描显示右上纵隔有一个直径45毫米的肿块，密度较低区域并有环形钙化。然而，胸部磁共振成像显示不存在脂肪也无钙化。尽管未观察到典型表现，但由于成熟囊性畸胎瘤难以排除，故进行了手术切除。在完全电视辅助胸腔镜手术中，发现肿瘤位于上纵隔，被纵隔胸膜覆盖，周围有致密纤维结构，并与周围脂肪组织一并切除。组织学诊断为血管瘤，周围脂肪组织伴有淋巴管生成和动静脉畸形样区域。
