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Granularity in disease classification impacts survival prediction in advanced systemic mastocytosis: A single institution study of 329 informative cases
The World Health Organization (WHO) classification system categorizes advanced systemic mastocytosis (SM‐Adv) into aggressive SM (ASM), mast cell leukemia (MCL), and SM with associated hematological neoplasm (SM‐AHN). By contrast, the International Consensus Classification (ICC) requires “immature”...
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Published in: | American journal of hematology 2024-01, Vol.99 (1), p.21-27 |
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creator | Tefferi, Ayalew Abdelmagid, Maymona Al‐Kali, Aref Patnaik, Mrinal Hogan, William J. Begna, Kebede Gangat, Naseema Orazi, Attilio Chen, Dong Reichard, Kaaren K. Pardanani, Animesh |
description | The World Health Organization (WHO) classification system categorizes advanced systemic mastocytosis (SM‐Adv) into aggressive SM (ASM), mast cell leukemia (MCL), and SM with associated hematological neoplasm (SM‐AHN). By contrast, the International Consensus Classification (ICC) requires “immature” MC cytomorphology for the diagnosis of MCL and limits SM‐AHN to myeloid neoplasms (SM‐AMN). The current study includes 329 patients with SM‐Adv (median age 65 years, range 18–88; males 58%): WHO subcategories SM‐AHN (N = 212; 64%), ASM (N = 99; 30%), and MCL (N = 18; 6%); ICC subcategories SM‐AMN (N = 190; 64%), ASM (N = 99; 33%), and MCL (N = 9; 3%); WHO‐defined MCL with “mature” MC cytomorphology and SM‐AHN associated with lymphoid neoplasms were operationally labeled as “MCL‐mature” (N = 9) and SM‐ALN (N = 22), respectively, and distinguished from ICC‐defined MCL and SM‐AMN. Multivariable analysis that included the Mayo alliance risk factors for survival in SM (age >60 years, anemia, thrombocytopenia, increased alkaline phosphatase) revealed more accurate survival prediction with the ICC versus WHO classification order: (i) survival was significantly worse with MCL‐immature versus MCL‐mature (hazard ratio [HR] 15; p |
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By contrast, the International Consensus Classification (ICC) requires “immature” MC cytomorphology for the diagnosis of MCL and limits SM‐AHN to myeloid neoplasms (SM‐AMN). The current study includes 329 patients with SM‐Adv (median age 65 years, range 18–88; males 58%): WHO subcategories SM‐AHN (N = 212; 64%), ASM (N = 99; 30%), and MCL (N = 18; 6%); ICC subcategories SM‐AMN (N = 190; 64%), ASM (N = 99; 33%), and MCL (N = 9; 3%); WHO‐defined MCL with “mature” MC cytomorphology and SM‐AHN associated with lymphoid neoplasms were operationally labeled as “MCL‐mature” (N = 9) and SM‐ALN (N = 22), respectively, and distinguished from ICC‐defined MCL and SM‐AMN. Multivariable analysis that included the Mayo alliance risk factors for survival in SM (age >60 years, anemia, thrombocytopenia, increased alkaline phosphatase) revealed more accurate survival prediction with the ICC versus WHO classification order: (i) survival was significantly worse with MCL‐immature versus MCL‐mature (hazard ratio [HR] 15; p < .01), (ii) prognostic distinction between MCL and SM‐AHN/AMN was confirmed in the context of ICC (HR 9.3; p < .01) but not WHO classification order (p = .99), (iii) survival was similar between MCL‐mature and SM‐AMN (p = .18), and (iv) SM‐AMN (HR 1.7; p < .01) but not SM‐ALN (p = .37) was prognostically distinct from ASM. The current study provides evidence for the independent prognostic contribution of both the ICC system for SM‐Adv and the Mayo alliance risk factors for survival in SM.</description><identifier>ISSN: 0361-8609</identifier><identifier>ISSN: 1096-8652</identifier><identifier>EISSN: 1096-8652</identifier><identifier>DOI: 10.1002/ajh.27113</identifier><identifier>PMID: 37772442</identifier><language>eng</language><publisher>Hoboken, USA: John Wiley & Sons, Inc</publisher><subject>Adolescent ; Adult ; Aged ; Aged, 80 and over ; Alkaline phosphatase ; Classification ; Hematologic Neoplasms - diagnosis ; Hematology ; Humans ; Leukemia, Mast-Cell ; Male ; Mast cell leukemia ; Mast Cells ; Mastocytosis ; Mastocytosis - diagnosis ; Mastocytosis, Systemic - diagnosis ; Middle Aged ; Prognosis ; Risk Factors ; Thrombocytopenia ; Tumors ; Young Adult</subject><ispartof>American journal of hematology, 2024-01, Vol.99 (1), p.21-27</ispartof><rights>2023 Wiley Periodicals LLC.</rights><rights>2024 Wiley Periodicals LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3533-8c29c40874e0007ff2ada994b0ef9153644bf01db2cc5b7c96083354862b92973</citedby><cites>FETCH-LOGICAL-c3533-8c29c40874e0007ff2ada994b0ef9153644bf01db2cc5b7c96083354862b92973</cites><orcidid>0000-0003-4605-3821 ; 0000-0002-0824-3715 ; 0000-0002-9104-6172 ; 0000-0003-2730-8593 ; 0000-0002-1660-7013 ; 0000-0001-7627-9560 ; 0000-0002-9084-4148 ; 0000-0001-6998-662X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37772442$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Tefferi, Ayalew</creatorcontrib><creatorcontrib>Abdelmagid, Maymona</creatorcontrib><creatorcontrib>Al‐Kali, Aref</creatorcontrib><creatorcontrib>Patnaik, Mrinal</creatorcontrib><creatorcontrib>Hogan, William J.</creatorcontrib><creatorcontrib>Begna, Kebede</creatorcontrib><creatorcontrib>Gangat, Naseema</creatorcontrib><creatorcontrib>Orazi, Attilio</creatorcontrib><creatorcontrib>Chen, Dong</creatorcontrib><creatorcontrib>Reichard, Kaaren K.</creatorcontrib><creatorcontrib>Pardanani, Animesh</creatorcontrib><title>Granularity in disease classification impacts survival prediction in advanced systemic mastocytosis: A single institution study of 329 informative cases</title><title>American journal of hematology</title><addtitle>Am J Hematol</addtitle><description>The World Health Organization (WHO) classification system categorizes advanced systemic mastocytosis (SM‐Adv) into aggressive SM (ASM), mast cell leukemia (MCL), and SM with associated hematological neoplasm (SM‐AHN). By contrast, the International Consensus Classification (ICC) requires “immature” MC cytomorphology for the diagnosis of MCL and limits SM‐AHN to myeloid neoplasms (SM‐AMN). The current study includes 329 patients with SM‐Adv (median age 65 years, range 18–88; males 58%): WHO subcategories SM‐AHN (N = 212; 64%), ASM (N = 99; 30%), and MCL (N = 18; 6%); ICC subcategories SM‐AMN (N = 190; 64%), ASM (N = 99; 33%), and MCL (N = 9; 3%); WHO‐defined MCL with “mature” MC cytomorphology and SM‐AHN associated with lymphoid neoplasms were operationally labeled as “MCL‐mature” (N = 9) and SM‐ALN (N = 22), respectively, and distinguished from ICC‐defined MCL and SM‐AMN. Multivariable analysis that included the Mayo alliance risk factors for survival in SM (age >60 years, anemia, thrombocytopenia, increased alkaline phosphatase) revealed more accurate survival prediction with the ICC versus WHO classification order: (i) survival was significantly worse with MCL‐immature versus MCL‐mature (hazard ratio [HR] 15; p < .01), (ii) prognostic distinction between MCL and SM‐AHN/AMN was confirmed in the context of ICC (HR 9.3; p < .01) but not WHO classification order (p = .99), (iii) survival was similar between MCL‐mature and SM‐AMN (p = .18), and (iv) SM‐AMN (HR 1.7; p < .01) but not SM‐ALN (p = .37) was prognostically distinct from ASM. The current study provides evidence for the independent prognostic contribution of both the ICC system for SM‐Adv and the Mayo alliance risk factors for survival in SM.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Alkaline phosphatase</subject><subject>Classification</subject><subject>Hematologic Neoplasms - diagnosis</subject><subject>Hematology</subject><subject>Humans</subject><subject>Leukemia, Mast-Cell</subject><subject>Male</subject><subject>Mast cell leukemia</subject><subject>Mast Cells</subject><subject>Mastocytosis</subject><subject>Mastocytosis - diagnosis</subject><subject>Mastocytosis, Systemic - diagnosis</subject><subject>Middle Aged</subject><subject>Prognosis</subject><subject>Risk Factors</subject><subject>Thrombocytopenia</subject><subject>Tumors</subject><subject>Young Adult</subject><issn>0361-8609</issn><issn>1096-8652</issn><issn>1096-8652</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp1kc9u1DAQhy0EokvhwAsgS1zgsO34T-KY26qClqpSL-VsOY4DXiXx4nG2ypv0cTFN4YDEaUaab74Z6UfIWwZnDICf2_2PM64YE8_IhoGut01d8edkA6JmpQd9Ql4h7gEYkw28JCdCKcWl5BvycJnsNA82hbzQMNEuoLfoqRssYuiDsznEiYbxYF1GinM6hqMd6CH5Lrh1NlHbHe3kfEdxwezH4OhoMUe35IgBP9EdxTB9H3xhMYc8P-5hnruFxp4Krsugj2ksx47ldnkAX5MXvR3Qv3mqp-Tbl893F1fbm9vLrxe7m60TlRDbxnHtJDRKegBQfc9tZ7WWLfhes0rUUrY9sK7lzlWtcrqGRohKNjVvNddKnJIPq_eQ4s_ZYzZjQOeHwU4-zmh4o6D4WC0K-v4fdB_nNJXvDNfAdVPUVaE-rpRLETH53hxSGG1aDAPzOy5T4jKPcRX23ZNxbkff_SX_5FOA8xW4D4Nf_m8yu-urVfkLX1KgtQ</recordid><startdate>202401</startdate><enddate>202401</enddate><creator>Tefferi, Ayalew</creator><creator>Abdelmagid, Maymona</creator><creator>Al‐Kali, Aref</creator><creator>Patnaik, Mrinal</creator><creator>Hogan, William J.</creator><creator>Begna, Kebede</creator><creator>Gangat, Naseema</creator><creator>Orazi, Attilio</creator><creator>Chen, Dong</creator><creator>Reichard, Kaaren K.</creator><creator>Pardanani, Animesh</creator><general>John Wiley & Sons, Inc</general><general>Wiley Subscription Services, Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-4605-3821</orcidid><orcidid>https://orcid.org/0000-0002-0824-3715</orcidid><orcidid>https://orcid.org/0000-0002-9104-6172</orcidid><orcidid>https://orcid.org/0000-0003-2730-8593</orcidid><orcidid>https://orcid.org/0000-0002-1660-7013</orcidid><orcidid>https://orcid.org/0000-0001-7627-9560</orcidid><orcidid>https://orcid.org/0000-0002-9084-4148</orcidid><orcidid>https://orcid.org/0000-0001-6998-662X</orcidid></search><sort><creationdate>202401</creationdate><title>Granularity in disease classification impacts survival prediction in advanced systemic mastocytosis: A single institution study of 329 informative cases</title><author>Tefferi, Ayalew ; Abdelmagid, Maymona ; Al‐Kali, Aref ; Patnaik, Mrinal ; Hogan, William J. ; Begna, Kebede ; Gangat, Naseema ; Orazi, Attilio ; Chen, Dong ; Reichard, Kaaren K. ; Pardanani, Animesh</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3533-8c29c40874e0007ff2ada994b0ef9153644bf01db2cc5b7c96083354862b92973</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Alkaline phosphatase</topic><topic>Classification</topic><topic>Hematologic Neoplasms - diagnosis</topic><topic>Hematology</topic><topic>Humans</topic><topic>Leukemia, Mast-Cell</topic><topic>Male</topic><topic>Mast cell leukemia</topic><topic>Mast Cells</topic><topic>Mastocytosis</topic><topic>Mastocytosis - diagnosis</topic><topic>Mastocytosis, Systemic - diagnosis</topic><topic>Middle Aged</topic><topic>Prognosis</topic><topic>Risk Factors</topic><topic>Thrombocytopenia</topic><topic>Tumors</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tefferi, Ayalew</creatorcontrib><creatorcontrib>Abdelmagid, Maymona</creatorcontrib><creatorcontrib>Al‐Kali, Aref</creatorcontrib><creatorcontrib>Patnaik, Mrinal</creatorcontrib><creatorcontrib>Hogan, William J.</creatorcontrib><creatorcontrib>Begna, Kebede</creatorcontrib><creatorcontrib>Gangat, Naseema</creatorcontrib><creatorcontrib>Orazi, Attilio</creatorcontrib><creatorcontrib>Chen, Dong</creatorcontrib><creatorcontrib>Reichard, Kaaren K.</creatorcontrib><creatorcontrib>Pardanani, Animesh</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>American journal of hematology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tefferi, Ayalew</au><au>Abdelmagid, Maymona</au><au>Al‐Kali, Aref</au><au>Patnaik, Mrinal</au><au>Hogan, William J.</au><au>Begna, Kebede</au><au>Gangat, Naseema</au><au>Orazi, Attilio</au><au>Chen, Dong</au><au>Reichard, Kaaren K.</au><au>Pardanani, Animesh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Granularity in disease classification impacts survival prediction in advanced systemic mastocytosis: A single institution study of 329 informative cases</atitle><jtitle>American journal of hematology</jtitle><addtitle>Am J Hematol</addtitle><date>2024-01</date><risdate>2024</risdate><volume>99</volume><issue>1</issue><spage>21</spage><epage>27</epage><pages>21-27</pages><issn>0361-8609</issn><issn>1096-8652</issn><eissn>1096-8652</eissn><abstract>The World Health Organization (WHO) classification system categorizes advanced systemic mastocytosis (SM‐Adv) into aggressive SM (ASM), mast cell leukemia (MCL), and SM with associated hematological neoplasm (SM‐AHN). By contrast, the International Consensus Classification (ICC) requires “immature” MC cytomorphology for the diagnosis of MCL and limits SM‐AHN to myeloid neoplasms (SM‐AMN). The current study includes 329 patients with SM‐Adv (median age 65 years, range 18–88; males 58%): WHO subcategories SM‐AHN (N = 212; 64%), ASM (N = 99; 30%), and MCL (N = 18; 6%); ICC subcategories SM‐AMN (N = 190; 64%), ASM (N = 99; 33%), and MCL (N = 9; 3%); WHO‐defined MCL with “mature” MC cytomorphology and SM‐AHN associated with lymphoid neoplasms were operationally labeled as “MCL‐mature” (N = 9) and SM‐ALN (N = 22), respectively, and distinguished from ICC‐defined MCL and SM‐AMN. Multivariable analysis that included the Mayo alliance risk factors for survival in SM (age >60 years, anemia, thrombocytopenia, increased alkaline phosphatase) revealed more accurate survival prediction with the ICC versus WHO classification order: (i) survival was significantly worse with MCL‐immature versus MCL‐mature (hazard ratio [HR] 15; p < .01), (ii) prognostic distinction between MCL and SM‐AHN/AMN was confirmed in the context of ICC (HR 9.3; p < .01) but not WHO classification order (p = .99), (iii) survival was similar between MCL‐mature and SM‐AMN (p = .18), and (iv) SM‐AMN (HR 1.7; p < .01) but not SM‐ALN (p = .37) was prognostically distinct from ASM. The current study provides evidence for the independent prognostic contribution of both the ICC system for SM‐Adv and the Mayo alliance risk factors for survival in SM.</abstract><cop>Hoboken, USA</cop><pub>John Wiley & Sons, Inc</pub><pmid>37772442</pmid><doi>10.1002/ajh.27113</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-4605-3821</orcidid><orcidid>https://orcid.org/0000-0002-0824-3715</orcidid><orcidid>https://orcid.org/0000-0002-9104-6172</orcidid><orcidid>https://orcid.org/0000-0003-2730-8593</orcidid><orcidid>https://orcid.org/0000-0002-1660-7013</orcidid><orcidid>https://orcid.org/0000-0001-7627-9560</orcidid><orcidid>https://orcid.org/0000-0002-9084-4148</orcidid><orcidid>https://orcid.org/0000-0001-6998-662X</orcidid></addata></record> |
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subjects | Adolescent Adult Aged Aged, 80 and over Alkaline phosphatase Classification Hematologic Neoplasms - diagnosis Hematology Humans Leukemia, Mast-Cell Male Mast cell leukemia Mast Cells Mastocytosis Mastocytosis - diagnosis Mastocytosis, Systemic - diagnosis Middle Aged Prognosis Risk Factors Thrombocytopenia Tumors Young Adult |
title | Granularity in disease classification impacts survival prediction in advanced systemic mastocytosis: A single institution study of 329 informative cases |
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