Takashima S, Nakano H, Misao T
Department of Surgery, National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan.
Kyobu Geka. 2008 Jul;61(7):599-601.
We report a case of 45-year-old man with true thymic hyperplasia. Three years earlier he had undergone operation for carcinoma of the floor of mouth. He had no symptoms but had been pointed out an anterior mediastinal mass on chest computed tomography (CT). Chest CT revealed a well defined solid mass in front of the ascending aorta. The mass showed sail sign. The size of this mass did not increase on a follow-up chest CT. The signal intensity of this mass was slightly inhomogeneous on chest magnetic resonance imaging (MRI). No invasion of the surround tissues was observed. Since the possibility of thymoma or other malignancy, extended thymectomy under median sternotomy was performed. His postoperative course was uneventful. Histopathological examination revealed true thymic hyperplasia.
我们报告一例45岁患有真性胸腺增生的男性病例。三年前，他因口底癌接受了手术。他没有症状，但在胸部计算机断层扫描（CT）中被发现前纵隔有肿块。胸部CT显示升主动脉前方有一个边界清晰的实性肿块。该肿块显示帆征。在后续的胸部CT检查中，这个肿块的大小没有增加。在胸部磁共振成像（MRI）上，这个肿块的信号强度略有不均匀。未观察到周围组织受侵犯。由于存在胸腺瘤或其他恶性肿瘤的可能性，遂通过正中胸骨切开术进行了扩大胸腺切除术。他的术后病程平稳。组织病理学检查显示为真性胸腺增生。
