Abstract
We reported a 7-years-old boy with post-infectious bronchiolitis obliterans diagnosed on the basis of his clinical course and the results of respiratory function tests and chest radiological examinations. We had a question as to whether the diagnosis of asthma was reliable because high-pitched expiratory rhonchi were always audible on his left upper breast and he had severe peripheral obstructive ventitatory disturbance which did not respond to inhalation of bronchodilator. Patchy areas of mosaic perfusion were confirmed, with decreased vascular size within the lucent region on HRCT. The technical advances in the radiological diagnostic procedure can permit the omission of lung biopsy and/or bronchography for the diagnosis of post-infectious bronchiolitis obliterans. We should entertain the diagnosis of post-infectious bronchiolitis obliterans in patients with chronic asthma-like symptoms.
