An infected cyst due to a congenital pulmonary airway malformation

http://dx.doi.org/10.1016/j.idcr.2017.02.009 2214-2509/© 2017 The Authors. Published by Elsevier Ltd. This is an open access article un ampicillin for 5 days and his treatment course was favorable; he was discharged the next day and oral amoxicillin was continued. However, he developed a fever shortly after finishing the 10-day oral amoxicillin course, and presented to the emergency department again. A chest radiogram (posterior-anterior view; Fig. 1) showed air-fluid level in the left lower area that appeared to be freely mobile in the lateral decubitus view (Fig. 2), suggestive of an infected cyst due to a congenital anatomical malformation. After a 6-week antimicrobial course (ampicillin-sulbactam in first 3 weeks, followed by cefotaxime and clindamycin because he