[An exceptional cause of a penetrating thoracic trauma : High-pressure injection injury of the left upper lung lobe].

We report a thoracic high-pressure injection injury caused by hydraulic fluid. Immediate surgical intervention without resection of lung tissue ensured an uneventful postoperative course. High-pressure injection injuries often affect the hands, face, and eyes. Acute tissue damage and chronic late-onset complications may be observed. The unimpressive entry wound conceals the underlying tissue damage. Hence, prompt surgical inspection, basic wound debridement, and drainage or open wound therapy determine the outcome.