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Question : An 8 month old boy. What is the diagnosis?
Panruethai Trinavarat,M.D.
Assistant Professor.
Department of radiology, Faculty of medicine,
Chulalongkorn University
Case 8 :
Question :
An 8 month old boy. What is the diagnosis?
Answer :
Endobronchial TB
Differential diagnoses of air trapping are endobronchial lesions (foreign body, endobronchial TB, secretion), extrinsic lesions with pressure effect on bronchus (mediastinal mass, lymphnode enlargement, vascular ring), and bronchial wall abnormality itself (bronchomalacia). Evidence of hilar and mediastinal enlargement, as well as visualization of abnormal air column of bronchus may help in tailoring the differential diagnoses to TB and other mediastinal mass.
Bronchoscope and/or CT chest give the correct answers in most cases.
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