Introduction: Hydatid disease is a parasitic disease that mainly affects the liver and the lungs. Primary parietal pleural hydatid disease is a rare variant of this uncommon disease and is rarely reported in medical literature.
Case Presentation: We report a case of 36-year-old woman presented with chronic cough and chest pain. The blood tests showed high titer of anti-Echinococcus antibodies, and chest x-ray showed a well-defined round homogenous radio-opacity in the right middle and upper zones. A chest computed-tomography scan revealed a cystic lesion in the superior posterior segments of the right lung. However, surgical intervention proved it is a hydatid cyst arising from the parietal pleura; it was removed completely, and the patient improved significantly.
Conclusion: Primary pleural hydatid disease is rare. Though it is rare, pleural hydatid disease should be kept in mind, especially in the deferential diagnosis of a mass lesion in the chest. In addition to that, the appropriate surgical precautions should be taken and the en-bloc complete resection of the cyst may prevent recurrence and spreading of hydatid disease.