RESUMO
Objective To evaluate the role of spiral CT in initial diagnosis and following up detection for patients with thoracic sarcoidosis.Methods 25 patients with thoracic sarcoidosis which had complete data were analyzed retrospectively.Radiography and CT were performed in all cases.The diagnostic accuracy of two methods were statistically compared.Results The diagnostic accuracy of CT in initial detection of thoracic sarcoidosis was 64%.Among the misdiagnosed patients,5 cases were misdiagnosed as lymphoma(n=5) and the else were misdiagnosed as thoracic tuberculosis(n=1) and metastatic tumors(n=3).Conclusion As well as it's significance in following up period,the advantage of CT in determining the diagnosis of thoracic sarcoidosis is conspicuous.CT also can be used to evaluate the therapeutic efficacy.