[Radiologic diagnosis of spontaneous pneumothorax].

Although several new imaging modalities have been developed, plain chest-film examination remains the diagnostic procedure of choice for diagnosis and followup of spontaneous pneumothorax. Perfect chest radiographs and additional conventional tomography or fluoroscopy show complicating tension signs and in several cases can clarify the etiology. Other imaging modalities, such as digital radiography, CT, and MR modalities, are of limited value, but may be helpful to stage complicated findings. Radionuclide studies and Ultrasound may be helpful in special cases.