List eight causes of spontaneous pneumothorax.

1. Idiopathic (often associated with a long, slender build)

2. COPD or asthma

3. Pulmonary infection (e.g., bacterial pneumonia, tuberculosis, PCP)

4. Neoplasms, particularly primary lung cancer and metastatic osteosarcoma

5. Diseases causing honeycomb lung (e.g., sarcoidosis, eosinophilic granuloma of the lung)

6. Marfan's syndrome

7. Catamenial pneumothorax (i.e., a recurrent pneumothorax related to menses caused by endometriosis of the pleura; right lung affected more often than the left)

8. Smoking cocaine (i.e., crack)