Conclusion ( 1 ) in our research , frequent expression of bsap in h / rs cell of classical hodgkin ' s disease provides further evidence for its b - cell origin , and the expression of bsap on h / rs cells also can be in favor of the identification of h / rs cells and can distinguish hl from alcl . ( 2 ) expression of bsap is located in nucleoli of cells , while that of cd20 in membrane
