Correct!
4. 1 and 3

BAL eosinophilia can be divided into those diseases associated with a high eosinophil percentage (> 25%) and those with mild to moderate elevation (<25%) (2). Those diseases most commonly associated with a high eosinophil count include:

1. Chronic eosinophilic pneumonia (>40%)
2. Churg Strauss syndrome
3. Acute eosinophilic pneumonia (>25%)
4. Tropical pulmonary eosinophilia (40-70%). 

Those diseases associated with mild to moderate counts include:

1. Connective tissue disease
2. Drug-induced pneumonitis
3. Fungal pneumonia
4. Idiopathic pulmonary fibrosis (<10%)
5. Pulmonary Langerhans cell histiocytosis (Histiocytosis X)
6. Sarcoidosis.

A clinical diagnosis of chronic eosinophilic pneumonia (CEP) was made in our patient.

Which of the following is true regarding treatment of CEP? (click on the correct answer to proceed to the next panel)

1. Relapses are uncommon
2. Standard treatment is with inhaled corticosteroids
3. Standard treatment is with oral corticosteroids
4. Treatment usually requires at least 3 months with high doses of corticosteroids (>30 mg of prednisone or its equivalent per day)
5. None are true

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