محدوديتهاي تشخيصي راديوگرافي قفسه سينه دركيست هيداتيك

Pitfalls in the Radiographic Diagnosis of Pulmonary Hydatid Disease

Background and Objectives: Pulmonary hydatid disease, has various radiographic manifestations that can be misinterpreted as other disease entities. Ozvaran et al, studied the pitfalls of chest x-ray in the diagnosis of both complicated and uncomplicated cases of pulmonary hydatid disease, but they didnʹt determine the sensitivity and specificity of chest x-ray in this regard. The purpose of the this study, is to determine the pitfalls as well as sensitivity and specificity of chest x-ray in the diagnosis of hydatid disease. Materials and Methods: Fifty chest radiographs with suspected pulmonary hydatid disease were reviewed by 3 radiologists, while they were unaware of the history (blind study), the results of other diagnostic modalities and final diagnosis. The results were compared with final operative diagnosis and pathological reports. Results: The results shown in the tables 1, 2 and 3, revealing pitfalls in the diagnosis of pulmonary hydatid disease. These results have been integrated in the table 4 to determine sensitivity and specificity of this diagnostic modality. The sensitivity of chest x-ray in pulmonary hydatid disease was 73% in complicated cases and 78% in uncomplicated ones. The specificity was 72.5% and 72.4%, respectively. Conclusion: Hydatid disease may present in various forms in chest x-ray; therefore, in endemic area it should he considered as a probable diagnosis in every pulmonary lesion. For accurate diagnosis, CT scan, sonography and hronchoscopy, are recommended.