the thymoma with mg differed from that in the absence of mg in the following aspects : the ratio of lymphocytes to epithelial cells in the tumor was larger , the polygonal cell type was more prominent ( i.e. , in 83 % of the mg patients this cell type predominated ) , and the differentiation of epithelial cells in the tumor was more advanced in the group with mg than in the group without mg .
C0040100
thymoma
C0014597
epithelial cells