PMID- 27353768 OWN - NLM STAT- MEDLINE DCOM- 20170223 LR - 20220408 IS - 1943-7722 (Electronic) IS - 0002-9173 (Linking) VI - 146 IP - 1 DP - 2016 Jul TI - Bone Marrow Conventional Karyotyping and Fluorescence In Situ Hybridization: Defining an Effective Utilization Strategy for Evaluation of Myelodysplastic Syndromes. PG - 86-94 LID - 10.1093/ajcp/aqw077 [doi] AB - OBJECTIVES: The current standard of practice for evaluation of myelodysplastic syndromes (MDS) includes peripheral blood and bone marrow morphology review and conventional karyotyping. Karyotype provides a global view of the chromosome complement while fluorescence in situ hybridization (FISH) targets specific abnormalities. The aim of this study was to determine if an MDS-FISH panel would add value beyond karyotype in MDS workup. METHODS: We studied 505 patients who were evaluated for a possible MDS and had concurrent bone marrow examination, karyotyping, and MDS-FISH performed. RESULTS: In total, 462 cases had adequate karyotyping (>/=20 metaphases) and showed excellent concordance (96%, 445/462) between karyotyping and MDS-FISH. Additional FISH abnormalities had no impact on diagnosis and minimal impact on the cytogenetic prognostic scoring in the myeloid neoplasm cases (2%, 4/206). The concordance rate dropped to 82% (32/39) in the group with insufficient karyotyping (<20 metaphases), and additional FISH findings in this subgroup had no impact on the diagnosis but altered the cytogenetic prognostic scoring in 10% (2/20) of myeloid neoplasm cases. CONCLUSIONS: In the evaluation of a possible MDS, FISH rarely provides additional value when karyotype is adequate. We propose a value-based, cost-effective algorithmic approach for conventional karyotyping and FISH testing in routine MDS workup. CI - (c) American Society for Clinical Pathology, 2016. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - He, Rong AU - He R AD - From the Divisions of Hematopathology he.rong@mayo.edu. FAU - Wiktor, Anne E AU - Wiktor AE AD - Laboratory Genetics. FAU - Durnick, David K AU - Durnick DK AD - From the Divisions of Hematopathology. FAU - Kurtin, Paul J AU - Kurtin PJ AD - From the Divisions of Hematopathology. FAU - Van Dyke, Daniel L AU - Van Dyke DL AD - Laboratory Genetics. FAU - Tefferi, Ayalew AU - Tefferi A AD - Hematology, Mayo Clinic College of Medicine, Rochester, MN. FAU - Patnaik, Mrinal S AU - Patnaik MS AD - Hematology, Mayo Clinic College of Medicine, Rochester, MN. FAU - Ketterling, Rhett P AU - Ketterling RP AD - From the Divisions of Hematopathology Laboratory Genetics. FAU - Hanson, Curtis A AU - Hanson CA AD - From the Divisions of Hematopathology Laboratory Genetics. LA - eng PT - Journal Article DEP - 20160627 PL - England TA - Am J Clin Pathol JT - American journal of clinical pathology JID - 0370470 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Bone Marrow/pathology MH - Child MH - Child, Preschool MH - Chromosome Aberrations MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Karyotyping/*methods MH - Male MH - Middle Aged MH - Myelodysplastic Syndromes/*genetics MH - Young Adult OTO - NOTNLM OT - Genetics OT - Hematology OT - Hematopathology OT - Molecular diagnostics EDAT- 2016/06/30 06:00 MHDA- 2017/02/24 06:00 CRDT- 2016/06/30 06:00 PHST- 2016/06/30 06:00 [entrez] PHST- 2016/06/30 06:00 [pubmed] PHST- 2017/02/24 06:00 [medline] AID - aqw077 [pii] AID - 10.1093/ajcp/aqw077 [doi] PST - ppublish SO - Am J Clin Pathol. 2016 Jul;146(1):86-94. doi: 10.1093/ajcp/aqw077. Epub 2016 Jun 27.