Plastic bronchitis, also called pseudomembranous bronchitis or fibrinous bronchitis, is a rare but well-known condition characterized by the formation of endobronchial casts that can obstruct the airways. It is generally seen in bronchial hypersecretory disorders like asthma, cystic fibrosis, and bronchiectasis. It has also been noted in acute chest syndrome associated with sickle cell disease. Moreover, several nonpulmonary conditions have also been associated with it; these include congenital cardiopathies (especially after a Fontan procedure), constrictive pericarditis, and lymph vessel malformations. Some of the cases have not been linked to any underlying condition and have been termed idiopathic. People of all ages are affected, with a slight female preponderance. Clinical presentation varies depending upon the size of the casts and the time taken to form the casts as well as the underlying condition. Most patients present with fever, malaise, constant irritating cough, and chest pain, which can be pleuritic. Some may present with a rapid onset of respiratory distress, with wheezing and inspiratory stridor.