title: Abundant cartilage formation of congenital pulmonary airway malformation--a case report.
abstract: Congenital pulmonary airway malformation (CPAM) of the lung is an uncommon developmental anomaly. We report an unusual case of type 1 CPAM with abundant cartilage in a 5-year-old boy. On chest radiography, a left lung mass was detected incidentally, and tumor resection was performed under the impression of a benign tumor. The pathological examination of the mass revealed abundant cartilage in the walls of malformed bronchioles with partially cystic dilatation. We think that this case represents a cartilaginous variant of CPAM. The cartilaginous variant of CPAM should be differentiated pathologically from other pulmonary neoplasms containing abundant cartilage, such as chondroid hamartoma.
authors.affiliation: Department of Pathology, Chonnam National University Medical School, 5 Hak-dong, Dong-gu, Gwangju 501-749, Republic of Korea. drydchoi@hanmail.net
authors.forename: Yoo-Duk
authors.initials: YD
authors.lastname: Choi
authors.forename: Sung-Sun
authors.initials: SS
authors.lastname: Kim
authors.forename: Ji-Shin
authors.initials: JS
authors.lastname: Lee
authors.forename: Jong-Hee
authors.initials: JH
authors.lastname: Nam
authors.forename: Chan
authors.initials: C
authors.lastname: Choi
authors.forename: Kook-Joo
authors.initials: KJ
authors.lastname: Na
authors.forename: Jae-Hyuk
authors.initials: JH
authors.lastname: Lee
mesh_terms: D055745:Bronchioles / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D001995:Bronchography; D002356:Cartilage / Q000000981:diagnostic imaging / Q000473:pathology*; D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D033162:Incidental Findings; D008175:Lung Neoplasms / Q000175:diagnosis*; D008297:Male; D015619:Respiratory System Abnormalities / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D013908:Thoracotomy; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome