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J Korean Radiol Soc. 1996 Jan;34(1):63-68. Korean. Original Article.
Yoon SR , Jeong WK , Shim JC , Han CY , Kim HK , Yum HK .
Department of Diagnostic Radiology, Inje University College of Medicine, Korea.

PURPOSE: To evaluate the CT findings of histologically confirmed endobrnchial tuberculosis(EBTB) and to access their diagnostic value by comparing with the bronchoscopic findings. MATERIALS AND METHOD: We evaluated retrospectively the CT findings of 25 patients(male : female=5 : 20) with EBTB, and classified them into 3 types by their characteristic features, which are compared with the brochoscopic findings. The 3 types of CT features were as follows ; type 1 : central mass-like lesion with coarse calcific spots associated with atelectasis, type 2: caseous pneumonia with air-bronchogram associated with atelecatasis, type 3 : irregularly distorted and narrowed bronchovascular changes. RESULTS: Comparing the characteristic CT findings with the bronchoscopic findings, they were as follows ; type 1 showed completely occluded lumen by caseous or scar-like tissue with severely swollenmucosa, type 2 showed very thick tenacious mucous plug with anthracotic pigmentation of mucosa, type 3 showed chronic inflammatory change of mucosa with severely deviated or septated bronchial lumen by out-growing caseousgranulation tissue. A tracheal tuberculosis without parenchymal lesion was noted and the bronchoscopy showed caseous materials along the tracheal lumen to the carinal level. CONCLUSION: The characteristic CT findings ofthe bronchial wall and the changes of the adjacent tissues are related to the tracheobronchial tuberculous involvement. CT is useful for diagnosis of the endobronchial tuberculosis.

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