Pneumothoraces are a common and potentially severe condition in the emergency setting. Various pathophysiological mechanisms (spontaneous and traumatic) could be involved, consequently defining the diagnostic–therapeutic pathway. Understanding these underlying etiologies is essential for advancing diagnostic strategies and guiding therapeutic measures. Recent insights into diagnostic and therapeutic strategies focus on the role of ultrasound and the effectiveness of small-bore chest tubes in managing all types of pneumothoraces with a reduced risk of complications. Moreover, observation is emerging as a possible conservative approach in hemodynamically stable patients regardless of the etiology of the pneumothorax. This review aims to provide a valuable resource to improve diagnostic and therapeutic management, comparing traditional methods and promising, less invasive therapeutic interventions.
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