Pneumothorax occult is defined by the presence of a non-visible to standard asymptomatic pneumothorax and pulmonary diagnosed only by X-ray computed tomography. The presence of this type of pneumothorax before planned surgery is a rare situation. What to do remains non-consensual. Through two clinic cases and a literature review, the authors discuss the modalities of management of this entity.
Keywords: Anesthesia; Anesthésie; Chirurgie; Drainage thoracique; Occult pneumothorax; Pneumothorax occulte; Surgery; Thoracic drainage; Ventilation.
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