BACKGROUND: The relationship between congenital cystic adenomatoid malformation (CCAM) and pleuropulmonary blastoma (PPB), whether causal, correlational, or coincidental, remains controversial. There is a lack of consensus as to the optimal treatment of patients with asymptomatic CCAM. METHOD: We reviewed all cases of CCAM and PPB seen at our institution from 1999 to 2008. Institutional Research Ethics Board approval was obtained. The incidence of CCAM and PPB, respectively, was calculated based on birth numbers during the study period. RESULTS: Seventy-four CCAMs were resected over the study period in 129 children diagnosed with CCAM. Five PPBs were diagnosed during the study period. Three of the 5 PPB cases were initially diagnosed as CCAMs. These PPBs were not clinically or radiologically distinguishable from CCAMs. In our referral area, the incidence of CCAM was 1 in 12,000; and the incidence of PPB was 1 in 250,000 live births. The mortality rate for PPB in this cohort was 20%. CONCLUSION: Asymptomatic cystic lung malformations represent a therapeutic dilemma. In this cohort, the incidence of PPB among apparently benign lung lesions was 4%. No clinical or radiological markers differentiated benign CCAMs from PPBs. Our experience provides further justification for resection of all CCAMs. This should be discussed with parents until CCAMs and PPBs can be clearly distinguished preoperatively. Copyright 2010 Elsevier Inc. All rights reserved.
BACKGROUND: The relationship between congenital cystic adenomatoid malformation (CCAM) and pleuropulmonary blastoma (PPB), whether causal, correlational, or coincidental, remains controversial. There is a lack of consensus as to the optimal treatment of patients with asymptomatic CCAM. METHOD: We reviewed all cases of CCAM and PPB seen at our institution from 1999 to 2008. Institutional Research Ethics Board approval was obtained. The incidence of CCAM and PPB, respectively, was calculated based on birth numbers during the study period. RESULTS: Seventy-four CCAMs were resected over the study period in 129 children diagnosed with CCAM. Five PPBs were diagnosed during the study period. Three of the 5 PPB cases were initially diagnosed as CCAMs. These PPBs were not clinically or radiologically distinguishable from CCAMs. In our referral area, the incidence of CCAM was 1 in 12,000; and the incidence of PPB was 1 in 250,000 live births. The mortality rate for PPB in this cohort was 20%. CONCLUSION: Asymptomatic cystic lung malformations represent a therapeutic dilemma. In this cohort, the incidence of PPB among apparently benign lung lesions was 4%. No clinical or radiological markers differentiated benign CCAMs from PPBs. Our experience provides further justification for resection of all CCAMs. This should be discussed with parents until CCAMs and PPBs can be clearly distinguished preoperatively. Copyright 2010 Elsevier Inc. All rights reserved.
Authors: Debra Boyer; Carey C Thomson; Robyn Cohen; Devika Rao; Sharon Dell; Jonathan Rayment; Ruobing Wang; Fei J Dy; Jennifer Wambach; Jade Tam-Williams; Dawn Simon; Eric Price; Christopher M Oermann; Alvin Singh; Jordan S Rettig; Elizabeth D Duncan; Christopher D Baker; Deborah R Liptzin; Paul E Moore Journal: Ann Am Thorac Soc Date: 2016-06
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