PTEN and neoplasm: Fig. 2 shows some examples of typical positive stainings. There were no significant differences in expression levels between specific reciprocal translocations in SRTSs and NRTSs,41.30% and 37.5%,respectively. The realationship between PTEN expression and clinical Features were evaluated. There were no significant association between PTEN expression and age, gender, tumor size, location of the primary tumor ,tumor grade and different histotypes,as shown in Table 1.