Abstract
Primary pleural hydatid cysts are exceptionally uncommon, even in areas where this parasitic infection is prevalent. The occurrence of pneumothorax can serve as an indicator of this condition, presenting a challenge in both diagnosis and treatment when compared to more common causes of pneumothorax. Moreover, hydatid serology often yields negative results, further complicating the diagnosis. Our case study involves a 15-year-old male who experienced a pneumothorax, subsequently revealing a primary pleural hydatid cyst. This report focuses on elucidating its genesis mechanism and outlining its indicative clinical, radiological, and biological characteristics.