Analysis of Misdiagnosis of 20 Patients with Adult Atypical Tuberculosis

Objective To analyse the cause of misdiagnosis of adult atypical tuberculosis and propose countermeasures.Methods We retrospectively reviewed 20 cases of adult atypical tuberculosis misdiagnosed in our hospital during November 2009 and November 2010.Results The clinical manifestation of this group of patients included fever,cough,expectoration.Diagnostic errors was 13 cases of pneumonia,2 cases of bronchitis,2 cases of lung cancer and 3 cases were missed diagnosed,7 cases were definitly diagnosed by swear and biopsy of bronchofiborscopy;3 cases by percutaneous pulmonary puncture biopsy;3 cases by collecting sputum and finding acid-fast bacilli(AFB);3 cases were positive for purified protein derivative(PPD) test;2 cases were proved by pathology and operation,2 cases were valid for diagnostic antitubercular treatment.All the patients' symptoms were relieved by anti-tuberculosis drugs.Conclusion The misdiagnosis rate of adult atypical tuberculosis is high.Early CT examination,fiberoptic bronchoscopy and percutaneous pulmonary puncture inspection are necessary in improving the detection rate.