The results showed that the bcl-2/IgH fusion gene was present in 57% of follicular lymphomas and that this translocation was also present in 33% of the reactive follicular hyperplasia cases.     ///     Polymerase chain reaction (PCR) and immunohistochemical staining methods were used to detect the bcl-2/IgH fusion gene [t(14:18)] and the overexpression of bcl-2 protein in 28 cases of follicular lymphomas and 18 cases of reactive follicular hyperplasia. 