Abstract
Purpose: The aim of this retrospective study was to analyze the timing of surgical treatment and the surgical method for congenital cystic adenomatoid malformation (CCAM) in our institution.
Methods: Between 2002 and 2014, 11 patients (7 males, 4 females) underwent surgical resection for CCAM. The patients were classified into either the prenatally diagnosed group (Group P) or the non-prenatally diagnosed group (Group N). The medical data of the two groups were reviewed.
Results: There were 7 cases of Stocker Type I and 4 cases of Type II. Ten patients underwent lobectomy and 1 patient underwent portal lobectomy. Groups P and N included 8 and 3 patients, respectively. In Group P, with the exception of 1 patient who moved to another clinic for follow-up and 1 patient who self-discontinued outpatient visits, the remaining 6 patients underwent radical surgery after 9 months. Emergency surgery was carried out in 2 patients. In Group N, 2 patients were identified on the basis of their symptoms, and emergency surgery was carried out in 1 patient. All the patients who underwent emergency surgery had CCAM of Stocker Type I, with distension of the lesions due to trapped air as the cause thereof. Postoperative complications were phrenic nerve paralysis and funnel chests in 2 patients.
Conclusion: In the case of symptomatic CCAM, prompt surgery is needed. However, in the case of asymptomatic CCAM, surgery should be conducted within less than 9 months. However, CCAM operated within less than 3 months has postoperative complications; thus, operation after 3 months is desirable.
