RT Journal Article SR Electronic T1 A strange case of a tension pneumothorax JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 470 OP 471 DO 10.1136/emj.19.5.470 VO 19 IS 5 A1 D Boon A1 T Llewellyn A1 P Rushton YR 2002 UL http://emj.bmj.com/content/19/5/470.abstract AB A 5 year old boy attended the emergency department with a tension pneumothorax secondary to congenital cystic adenomatous malformation of the lung. Management problems are discussed and congenital cystic adenomatous malformation reviewed.