Hosting 728 files, 2951 images, and 4 contributors.

Random Case

Grid Malalignment Artifact
Joseph Junewick, MD FACR
over 8 years ago
Enter A Workflow
Standard2   Academic2

Please choose a workflow. A standard workflow allows you to browse the repository with full case detail; the academic workflow allows you to browse the repository with limited case detail revealed. Double click on the images to launch image viewer.

ARSt Case Repository

Transient Tachypnea of the Newborn

Case Detail

Anatomy: Chest
Joseph Junewick, MD FACR
Diagnostic Category: Developmental or Congenital
Created: over 8 years ago
Updated: over 8 years ago
Tags: PEDS
Modality/Study Types: CR
Adobe32 PDF Imagej32 ImageJA


Newborn male with tachypnea.

Case Images


Transient tachypnea of the newborn


CR – Cardiomegaly, vascular congestion and small right pleural effusion. Followup radiograph the following day is normal.


Transient tachypnea of the newborn, also known as “wet lung disease” or “retained fetal lung fluid” is a condition in which the newborn experiences symptoms of respiratory distress, usually a respiratory rate greater than 60 breaths per minute, retractions, and/or grunting. Occasionally hypoxia is present and supplemental oxygen is needed. This condition is due to retained fluid in the newborn lung that has not been adequately evacuated in the perinatal period. Typically, 30% of fetal lung fluid is resorbed by lymphatics, 40% is resorbed by capillaries, and 30% is “squeezed” out as the infant traverses the birth canal. Cesaerean section without labor, for instance, undermines the fetal “”squeeze” process, and results in a higher incidence of transient tachypnea. Chest radiographs may show increased perihilar vascular markings, course, linear interstitial opacities, fluid in the fissures; patchy areas of alveolar opacification, small pleural effusions, and occasionally mild cardiomegaly and hyperinflation. Successive images within a few days span should show rapid improvement. Clinical and radiological resolution occurs within 72 hours. The differential diagnosis of TTN would include infant respiratory distress syndrome, meconium aspiration, neonatal pneumonia, and causes of pulmonary edema (including left-right shunt with failure, anomalous venous drainage, etc.).


Cleveland RH: A radiographic update on medical diseases of the newborn chest. Pediatric Radiology (1995); 25: 631-637.

Guglani L, Lakshminrusimha S, Ryan R: Transient tachypnea of the newborn. Pediatrics in Review (2008); 29:59-65.


Daniel Dykstra, MD

Corporate Office: 616.363.7272, 3264 North Evergreen Drive, Grand Rapids, MI 49525

Spectrum Health Helen Devos Childrens Hospital GE HealthCare