Department of Radiology, Osaka University Graduate School of Medicine, Suita-city, Osaka, 565-0871, Japan.
Thorac Surg Clin. 2011 Feb;21(1):1-12, v. doi: 10.1016/j.thorsurg.2010.08.008.
Thymic epithelial tumors, such as thymomas and thymic carcinomas, are the most common primary neoplasms of the mediastinum. In 1999, the World Health Organization (WHO) proposed a consensus classification of thymic epithelial tumors based on the morphology of the epithelial cells and the ratio of lymphocytes to epithelial cells, which was revised in 2004. The latest classification system stratifies thymic epithelial tumors into six categories: types A, AB, B1, B2, B3, and thymic carcinoma. This article describes the prediction of thymoma histology and stage on the basis of radiographic criteria by reviewing the following: the WHO histologic classification of thymic epithelial tumors, the clinical staging of thymomas based on prognosis, and the radiographic appearance of thymomas according to the WHO histologic classification.
胸腺上皮肿瘤，如胸腺瘤和胸腺癌，是纵隔最常见的原发性肿瘤。1999 年，世界卫生组织（WHO）提出了基于上皮细胞形态和淋巴细胞与上皮细胞比值的胸腺瘤共识分类，该分类于 2004 年进行了修订。最新的分类系统将胸腺瘤分为六种类型：A型、AB 型、B1 型、B2 型、B3 型和胸腺癌。本文通过回顾以下内容，描述了基于影像学标准预测胸腺瘤组织学和分期的方法：胸腺瘤的 WHO 组织学分类、基于预后的胸腺瘤临床分期，以及根据 WHO 组织学分类的胸腺瘤影像学表现。
