title: Cystic fibrosis and neuroblastoma.
abstract: Two cases of coexistent cystic fibrosis and infantile thoracic neuroblastoma are presented. In one patient, neuroblastoma was congenital, and diagnosis of cystic fibrosis was made at 3 months of age; in the other, the diagnosis of cystic fibrosis was made at 7 months of age, preceding that of neuroblastoma by 4 months. In both infants, surgical resection of the tumors have been successful. Recent advances in the genetic aspects of neuroblastoma, including translocation and activation of the oncogene N-myc, are discussed. Current recombinant DNA technology, which can identify translocation of N-myc and allow localization of the cystic fibrosis gene if the translocation occurs near the cystic fibrosis allele, is being applied to these cases.
mesh_terms: D003550:Cystic Fibrosis / Q000150:complications* / Q000175:diagnosis / Q000235:genetics; D006801:Humans; D007223:Infant; D007621:Karyotyping; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications* / Q000175:diagnosis; D009447:Neuroblastoma / Q000150:complications* / Q000175:diagnosis; D014178:Translocation, Genetic