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Occult hydatid disease presenting as a spontaneous pneumothorax.

Pneumothorax is a rare complication of pulmonary hydatid disease and has been reported only once in Britain (Connellan et al, 1979), although it has been described in areas where the disease is endemic (Waddle, 1950; Tomalino, 1959; Bakir & Al-Omeri, 1969; Xanthakis et al, 1972). A case is described in which a patient with hydatid disease presented with a spontaneous pneumothorax. The diagnosis was not made until he underwent thoracotomy and lung biopsy following the development of secondary lung parenchymal and pleurai cysts a year later. A previously fit 22-year-old non-smoking mechanic from the Isle of Skye presented with a history of mild pleuritic left-sided chest pain associated with an incessant cough and slight effort dyspnoea. His symptoms were not alleviated by antibiotic therapy. A chest radiograph taken two months later showed a left-sided tension pneumothorax. After transfer to the regional hospital he was treated with an intercostal suction drain for two weeks. The pneumothorax resolved slow...