Discriminating preoperative features of pleuropulmonary blastomas (PPB) from congenital cystic adenomatoid malformations (CCAM): A retrospective, age-matched study

C. Oliveira, S. Himidan, A. C. Pastor, A. Nasr, D. Manson, G. Taylor, N. L. Yanchar, G. Brisseau, P. C.W. Kim

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

Background: The etiopathogenesis of pleuropulmonary blastoma (PPB) and its relationship to congenital cystic adenomatoid malformation (CCAM) remain controversial. Our recent analysis indicates that both the co-incidental occurrence and the outcome of PPB among CCAM patients are significant. We report here on our efforts to determine clinical and radiological features discriminating PPB from CCAM preoperatively. Materials & Methods: A retrospective analysis of all patients treated for PPB and CCAM between 1981 and 2008 at 2 tertiary academic centers under a centralized, single payer healthcare system was performed (REB#1000013239). Clinical, radiological and demographic data were analyzed. PPB patients were secondarily age matched with CCAM patients (±10% age difference in months), and clinical, radiological and demographic variables were compared. Descriptive statistics and non-parametric analysis were used. Results: A total of 10 PPB patients was identified. Median age at diagnosis was 24 months; the male to female ratio was 5:5. No PPB patients had an antenatal diagnosis (p<0.01). 9 were symptomatic, with symptoms including dyspnea (7/10), upper respiratory infection (6/10), poor weight gain (3/10), and 1 patient was asymptomatic. 5 of 10 patients had solid parts on CT, of which 4 out of 5 were diagnosed preoperatively as PPB and 1 out of 5 as CCAM. 5 of 10 were predominantly cystic of which none was diagnosed preoperatively as PPB (p=0.0476). Given that most CCAM patients are now diagnosed antenatally, only 5 PPB patients could be age-matched with CCAM patients. In the predominantly cystic PPB patients (n=5), no significant discriminating clinical and radiological features were identifiable when compared preoperatively with age-matched CCAM patients. Conclusion: PPB patients continue to represent a diagnostic challenge. Asymptomatic and predominantly cystic PPB remain indistinguishable from CCAM preoperatively. A high index of suspicion for PPB must be considered in any child presenting with cystic lung lesions beyond early infancy, particularly in a child with poor weight gain.

Original languageEnglish
Pages (from-to)2-7
Number of pages6
JournalEuropean Journal of Pediatric Surgery
Volume21
Issue number1
DOIs
Publication statusPublished - 2011
Externally publishedYes

ASJC Scopus Subject Areas

  • Pediatrics, Perinatology, and Child Health
  • Surgery

PubMed: MeSH publication types

  • Comparative Study
  • Journal Article

Fingerprint

Dive into the research topics of 'Discriminating preoperative features of pleuropulmonary blastomas (PPB) from congenital cystic adenomatoid malformations (CCAM): A retrospective, age-matched study'. Together they form a unique fingerprint.

Cite this