PMID- 8579122 OWN - NLM STAT- MEDLINE DCOM- 19960311 LR - 20181113 IS - 0002-9440 (Print) IS - 1525-2191 (Electronic) IS - 0002-9440 (Linking) VI - 148 IP - 2 DP - 1996 Feb TI - Chromosomal translocation t(X;18) in human synovial sarcomas analyzed by fluorescence in situ hybridization using paraffin-embedded tissue. PG - 601-9 AB - Synovial sarcoma is characterized cytogenetically by translocation t(X;18)(p11.2;q11.2). In this study, 28 cases that had been diagnosed initially as synovial sarcoma, including 2 fibrosarcomas, and 1 leiomyosarcoma were collected and examined for translocation t(X;18) on paraffin-embedded tissues by fluorescence in situ hybridization (FISH). Of the synovial sarcomas, 25 showed findings consistent with translocation t(X;18) with an additional copy signal for the total probe of X and 18 chromosomes. The other three cases, as well as the two fibrosarcomas and the leiomyosarcoma, did not show this translocation. One (case 26) of three negative cases was diagnosed finally as leiomyosarcoma and another (case 27) as malignant peripheral nerve sheath tumor from histological and immunohistochemical analysis. Thus, in all, 25 (96%) of 26 synovial sarcomas showed findings consistent with translocation t(X;18). In summary, translocation t(X;18) is a chromosomal aberration specific for synovial sarcoma. The fluorescence in situ hybridization technique can be used even on cells from paraffin-embedded tissues, and is a useful diagnostic aid for synovial sarcoma. FAU - Nagao, K AU - Nagao K AD - Department of Pathology, Faculty of Medicine, Tottori University, Japan. FAU - Ito, H AU - Ito H FAU - Yoshida, H AU - Yoshida H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Am J Pathol JT - The American journal of pathology JID - 0370502 RN - 0 (DNA Probes) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Child MH - Chromosomes, Human, Pair 18/*genetics MH - DNA Probes MH - Epithelial Cells MH - Female MH - Humans MH - Immunophenotyping MH - In Situ Hybridization, Fluorescence MH - Male MH - Middle Aged MH - Paraffin Embedding MH - Sarcoma, Synovial/diagnosis/*genetics/pathology MH - Soft Tissue Neoplasms/diagnosis/*genetics/pathology MH - Translocation, Genetic/*genetics MH - X Chromosome/*genetics PMC - PMC1861692 EDAT- 1996/02/01 00:00 MHDA- 1996/02/01 00:01 PMCR- 1996/08/01 CRDT- 1996/02/01 00:00 PHST- 1996/02/01 00:00 [pubmed] PHST- 1996/02/01 00:01 [medline] PHST- 1996/02/01 00:00 [entrez] PHST- 1996/08/01 00:00 [pmc-release] PST - ppublish SO - Am J Pathol. 1996 Feb;148(2):601-9.