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dc.contributor.authorTawatchai Pongpruttipanen_US
dc.contributor.authorSanya Sukpanichnanten_US
dc.contributor.authorThamathorn Assanasenen_US
dc.contributor.authorLertlakana Bhoopaten_US
dc.contributor.authorKanita Kayasuten_US
dc.contributor.authorWasana Kanoksilen_US
dc.contributor.authorPongsak Wannakrairoten_US
dc.description.abstract© 2014 Pongpruttipan et al. Background: Lymphomas are common malignancies that have various subtypes with many overlapping histologic, immunophenotypic and genetic features. Therefore, discordance in classifying lymphoma among pathologists may be encountered. But this issue is not well characterized. We conducted the present study to demonstrate discordances among Thai hematopathologists as well as to highlight common arguing points for classifying lymphomas.Methods: The 117 lymphoma cases were randomly retrieved and individually reviewed by 7 hematopathologists, members of the " Thai Hematopathologist Group," without knowing the original diagnoses. The consensus diagnoses were given from a discussion by all members. In each case, the diagnosis from each participant was compared with the consensus diagnosis and classified into 4 categories as follow: 1) concordance, 2) minor discordance, 3) major discordance and 4) serious discordance.Results: There were approximately 11% discordances between original and consensus diagnoses. The average discordances among all pathologists according to minor, major and serious discordances were 10%, 3.5% and 0.3%, respectively. Diffuse large B-cell lymphoma had the least discordance (7%). Small biopsies had been found to increase discordances in some lymphoma subtypes.Conclusions: The present study reveals some degrees of interobserver variation in classifying of lymphoma by using the 2008 WHO classification among hematopathologists. Some types of lymphomas on small biopsies were found to have a significant higher discordance rate. This study also described some common diagnostic discordances regarded as potential pitfalls in classifying lymphomas.en_US
dc.titleInterobserver variation in classifying lymphomas among hematopathologistsen_US
article.title.sourcetitleDiagnostic Pathologyen_US
article.volume9en_US Universityen_US Universityen_US Mai Universityen_US of Songkla Universityen_US
Appears in Collections:CMUL: Journal Articles

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