Takeuchi S, Osada H, Nishikawa M, Mochizuki A, Takagi M
Third Department of Surgery, St. Marianna University, School of Medicine, Kanagawa, Japan.
Nihon Kyobu Shikkan Gakkai Zasshi. 1997 Sep;35(9):1025-8.
A 74-year-old male, who had been treated for hypertension at the out-patient clinic, was admitted to our hospital because of an abnormal shadow on a chest radiograph. After diagnosis of thymoma by needle biopsy surgery was carried out on July 6, 1995, when an extended thymectomy along with removal of the entire tumor was done. During the surgery it was noticed that there was not one, but two independent tumors located in the anterior mediastinum, the upper left portion was growing from the level of the crania to the left brachiocephalic vein, whereas the lower right portion was growing towards the right thoracic cavity in front of the pericardium. Both tumors were encapsulated firmly, and connected to each other by scantly loose connective tissues. There was no continuity or sarring between the two tumors. Histologically both were diagnosed to be lymphocytic thymoma. We believe that this case is a good example of multiple thymomas and provides evidence of the potential multicentricity of thymoma. It is possible that extended thymectomy may be seeded for a complete resection of thymomas.
一名74岁男性，曾在门诊接受高血压治疗，因胸部X线片出现异常阴影而入住我院。1995年7月6日经针吸活检诊断为胸腺瘤后，进行了扩大胸腺切除术并完整切除整个肿瘤。手术中发现前纵隔并非一个而是两个独立的肿瘤，左上部分从颅底水平生长至左头臂静脉，而右下部分在心包前方朝向右胸腔生长。两个肿瘤均被牢固包裹，通过少量疏松结缔组织相互连接。两个肿瘤之间无连续性或粘连。组织学上两者均诊断为淋巴细胞性胸腺瘤。我们认为该病例是多发性胸腺瘤的一个良好实例，并为胸腺瘤潜在的多中心性提供了证据。扩大胸腺切除术可能有助于胸腺肿瘤的完整切除。
