Using a nonnested reverse transcriptase-polymerase chain reaction approach, we assayed for JAZF1-JJAZ1 gene fusion transcripts in 10 cases with available fresh-frozen tissue.     ///    "JAZF1-JJAZ1 gene fusion transcripts were detected in five (33%) of 15 ESTs, including three of eight primary uterine, one of four metastatic, one of one extrauterine, and none of two recurrent cases. "    ///    "JAZF1-JJAZ1 gene fusion transcripts were detected in five (33%) of 15 ESTs, including three of eight primary uterine, one of four metastatic, one of one extrauterine, and none of two recurrent cases."    ///    "The aim of this study was to evaluate the frequency of the JAZF1-JJAZ1 gene fusion among primary uterine, metastatic, and primary extrauterine ESTs of various histologic types and its role as a possible diagnostic adjunct. "    ///    Molecular detection of JAZF1-JJAZ1 gene fusion in endometrial stromal neoplasms with classic and variant histology: evidence for genetic heterogeneity..     ///    "The aim of this study was to evaluate the frequency of the JAZF1-JJAZ1 gene fusion among primary uterine, metastatic, and primary extrauterine ESTs of various histologic types and its role as a possible diagnostic adjunct."    ///    "Hence, the diagnostic utility of a JAZF1-JJAZ1 fusion transcript assay in ESTs may be limited to the classic histologic subset.. "    ///    Positivity for JAZF1-JJAZ1 fusion transcripts was found in four of 10 fresh-frozen samples and in one of five paraffin-embedded ESTs.     ///    "Most ESTs of classic histology showed evidence of JAZF1-JJAZ1 fusion (4 of 5 cases), whereas only one mixed smooth muscle ESN of 10 variant cases was positive. "    ///    "In conclusion, our data suggest that ESTs are genetically heterogeneous, with the prevalence of the JAZF1-JJAZ1 fusion being highest among ESTs of classic histology. "