( 2 ) morphological changes of the grafts occurred in nude mice with serial passages : during the first 6 passages , histiological picture was consistent with the common type of mfh similar to that of the original tumor , then after the 7th passage , the myxoid type coexisted with the common type , and finally the myxoid type occupied the entire grafts to form large cysts .
C0027651
tumor
C0010709
cysts