Dr. John, MD | Pediatric Pulmonologist on Instagram: "❓🫁What is Plastic Bronchitis? • Rare condition where thick mucus forms a mold (cast) of the airways • Blocks airflow → can cause parts of the lung to collapse ✅ The name comes from how the cast looks – a plastic‐like tube that takes the shape of the airways. ✅ Plastic bronchitis is very rare in otherwise healthy kids with asthma. ❤️ It’s more commonly seen in children with serious heart conditions (like those who had a Fontan surgery for con