Case of mucinous adenocarcinoma of the lung associated with congenital pulmonary airway malformation in a neonate
- Author:
Juneyoug KOH
1
;
Euiseok JUNG
;
Se Jin JANG
;
Dong Kwan KIM
;
Byong Sop LEE
;
Ki Soo KIM
;
Ellen Ai-Rhan KIM
Author Information
- Publication Type:Case Report
- Keywords: Congenital cystic adenomatoid malformation of lung; Mucinous adenocarcinoma; Newborn Infant
- MeSH: Adenocarcinoma, Mucinous; Adult; Child; Cystic Adenomatoid Malformation of Lung, Congenital; Humans; Infant, Newborn; Lung; Male; Metaplasia; Mucins; Rhabdomyosarcoma
- From:Korean Journal of Pediatrics 2018;61(1):30-34
- CountryRepublic of Korea
- Language:English
- Abstract: Congenital pulmonary airway malformation (CPAM), previously known as congenital cystic adenomatoid malformation, is a rare developmental lung abnormality associated with rhabdomyosarcoma, pleuropulmonary blastoma, and mucinous adenocarcinoma of the lung. We report an unusual case of a 10-day-old male newborn with a left lower lobe pulmonary cyst who underwent lobectomy, which revealed type II CPAM complicated by multifocal mucinous adenocarcinoma. KRAS sequencing revealed a somatic mutation in Codon12 (GGT → GAT), suggesting the development of a mucinous adenocarcinoma in the background of mucinous metaplasia. Mucinous adenocarcinoma is the most common lung tumor associated with CPAM, but it generally occurs in older children and adults. Further, all cases in the literature are of type I CPAM. This case in a neonate indicates that malignant transformation can occur very early in type II CPAM.
