Discussion of Meconium aspiration
- Occurs secondary to intrapartum or intrauterine aspiration of meconium.
- Most often in term of post-term infants.
- Usually secondary to stress (i.e. hypoxia).
- Aspirated meconium can cause small airways obstruction and a chemical pneumonitis.
 Imaging Findings for Meconium aspiration
 Plain film
- High lung volumes (secondary to small airway obstruction).
- Asymmetric, patchy pulmonary opacities.
- Pleural effusions can be seen
- Pneumothorax in 20 - 40% of cases (secondary to small airway obstruction).