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Vol.47 No.2 contents | Japanese/English |
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- The 32nd Diagnostic Imaging Seminar -
Thymic Epithelial Tumors
Noriyuki Tomiyama11Department of Radiology, Osaka University Graduate School of Medicine, Japan
In 1999 the World Health Organization (WHO) proposed a consensus classification of the thymic epithelial tumors. The WHO histologic classification has been shown to reflect the clinical features of thymic epithelial tumors and to correlate with prognosis. Type A tumors are more likely to have smooth contour, round shape, and homogeneous enhancement on CT than any other type of thymic epithelial tumor. The prevalence of plaque shape, irregular contour, and calcification increase through types AB, B1, B2, and B3. It is important to know these findings based on WHO classification because this classification system is supposed to have an implication in determining treatment strategy.
key words: Thymic epithelial tumor, Thymoma, WHO classification, Chest CT
JJLC 47 (2): 181-185, 2007
