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Pleuropulmonary blastoma: A report on 350 central pathology–confirmed pleuropulmonary blastoma cases by the International Pleuropulmonary Blastoma Registry

Messinger, Yoav H ; Stewart, Douglas R ; Priest, John R ; Williams, Gretchen M ; Harris, Anne K ; Schultz, Kris Ann P ; Yang, Jiandong ; Doros, Leslie ; Rosenberg, Philip S ; Hill, D. Ashley ; Dehner, Louis P

Cancer, 2015-01, Vol.121 (2), p.276-285 [Periódico revisado por pares]

United States

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Título:
Pleuropulmonary blastoma: A report on 350 central pathology–confirmed pleuropulmonary blastoma cases by the International Pleuropulmonary Blastoma Registry
Autor: Messinger, Yoav H ; Stewart, Douglas R ; Priest, John R ; Williams, Gretchen M ; Harris, Anne K ; Schultz, Kris Ann P ; Yang, Jiandong ; Doros, Leslie ; Rosenberg, Philip S ; Hill, D. Ashley ; Dehner, Louis P
Assuntos: Adolescent ; Child ; Child, Preschool ; childhood cancer ; DEAD-box RNA Helicases - genetics ; DICER1 ; Disease Progression ; Disease-Free Survival ; Female ; Germ-Line Mutation ; Humans ; Infant ; International Cooperation ; Kaplan-Meier Estimate ; Lung Neoplasms - complications ; Lung Neoplasms - mortality ; Lung Neoplasms - pathology ; Male ; Pleural Neoplasms - complications ; Pleural Neoplasms - mortality ; Pleural Neoplasms - pathology ; pleuropulmonary blastoma ; Proportional Hazards Models ; Pulmonary Blastoma - complications ; Pulmonary Blastoma - mortality ; Pulmonary Blastoma - pathology ; rare cancer ; Registries ; Ribonuclease III - genetics ; United States - epidemiology ; Young Adult
É parte de: Cancer, 2015-01, Vol.121 (2), p.276-285
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: BACKGROUND Pleuropulmonary blastoma (PPB) has 3 subtypes on a tumor progression pathway ranging from type I (cystic) to type II (cystic/solid) and type III (completely solid). A germline mutation in DICER1 is the genetic cause in the majority of PPB cases. METHODS Patients confirmed to have PPB by central pathology review were included, and their clinical characteristics and outcomes were reported. Germline DICER1 mutations were sought with Sanger sequencing. RESULTS There were 435 cases, and a central review confirmed 350 cases to be PPB; 85 cases (20%) were another entity. Thirty‐three percent of the 350 PPB cases were type I or type I regressed (type Ir), 35% were type II, and 32% were type III or type II/III. The median ages at diagnosis for type I, type II, and type III patients were 8, 35, and 41 months, respectively. The 5‐year overall survival (OS) rate for type I/Ir patients was 91%; all deaths in this group were due to progression to type II or III. OS was significantly better for type II versus type III (P = .0061); the 5‐year OS rates were 71% and 53%, respectively. Disease‐free survival (DFS) was also significantly better for type II versus type III (P = .0002); the 5‐year DFS rates were 59% and 37%, respectively. The PPB type was the strongest predictor of outcome. Metastatic disease at the diagnosis of types II and III was also an independent unfavorable prognostic factor. Sixty‐six percent of the 97 patients tested had a heterozygous germline DICER1 mutation. In this subset, the DICER1 germline mutation status was not related to the outcome. CONCLUSIONS Cystic type I/Ir PPB has a better prognosis than type II, and type II has a better outcome than type III. Surveillance of DICER1 carriers may allow the earlier detection of cystic PPB before its progression to type II or III PPB and thereby improve outcomes. Cancer 2015;121:276–85. © 2014 American Cancer Society. Three hundred fifty centrally reviewed pleuropulmonary blastoma cases confirm that the outcomes of type I are better than the outcomes of type II and that the outcomes of type II are better than the outcomes of type III. Thus, the early detection of type I pleuropulmonary blastoma before its progression to type II or III may improve outcomes.
Editor: United States
Idioma: Inglês

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Pleuropulmonary blastoma: A report on 350 central pathology–confirmed pleuropulmonary blastoma cases by the International Pleuropulmonary Blastoma Registry

Messinger, Yoav H ; Stewart, Douglas R ; Priest, John R ; Williams, Gretchen M ; Harris, Anne K ; Schultz, Kris Ann P ; Yang, Jiandong ; Doros, Leslie ; Rosenberg, Philip S ; Hill, D. Ashley ; Dehner, Louis P

United States

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