Table 2.

Sequential procedures used for the management of the first episode of pneumothorax in PLCH patients^a

Procedure	N = 47b
Observationc, n	6
• alone	4
• +drainage	1
• +drainage+ surgery + drainage +surgery	1
Aspiration + drainage, n	1
Drainage, n	30
• alone	20
• +surgeryd	10
Surgerye, n	10

^ainformation on the management of the first episode of pneumothorax was available for 42 patients

^bbecause 5 patients had bilateral pneumothorax, a total of 47 hemithorax were treated

^cwell tolerated small pneumothorax in all cases

^dtwo patients needed 2 successive VATS interventions

^eone patient needed 2 successive VATS interventions

Abbreviation definitions: PLCH pulmonary Langerhans cell histiocytosis, VATS video-assisted thoracic surgery