Definition of Primary atelectasis

Primary atelectasis: Failure of the lung to expand fully at birth. In contrast to secondary atelectasis in which there is partial or complete collapse of a lung that once had expanded, as may happen after chest surgery.


Last Editorial Review: 6/14/2012

Search MedTerms:


Back to MedTerms online medical dictionary A-Z List
Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.