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KMID : 0311120090500050721
Yonsei Medical Journal
2009 Volume.50 No. 5 p.721 ~ p.724
Unusual Combination of Tracheobronchopathia Osteochondroplastica and AA Amyloidosis
Klrbas Gokhan

Dagll Canan Eren
Tanr©¥kulu Abdullah Cetin
Y©¥ld©¥z Fetin
Bukte Yasar
Senyigit Abdurrahman
K©¥yan Esen
Abstract
Tracheobronchopathia osteochondroplastica (TO) is a rare disorder of unknown cause characterized by the presence of multiple submucosal osseous and/or cartilaginous nodules that protrude into the lumen of the trachea and large bronchi. A simultaneous diagnosis of TO and amyloidosis is rarely reported. In this report, a case initially suspected to be asthma bronchiole that could not be treated, was radiologically diagnosed as TO, and also secondary amyloidosis is presented. A 53 years, man patient reported a 3 years history of dyspnea. Pulmonary function tests (PFTs) showed an obstructive pattern. Chest X-rays revealed right middle lobe atelectasis. FOB and CT detected nodular lesions in the trachea and in the anterior and lateral walls of the main bronchi. AA amyloidosis was confirmed by endobronchial biopsy. In the abdominal fat pad biopsy, amyloidosis was not detected. Asthma bronchiole was excluded by PFTs. This case illustrates that it is possible for TO and amyloidosis to masquerade as asthma. TO and amyloidosis should be suspected in patients of older ages with asthma and especially with poorly treated asthmatic patients. Although nodular lesions in the anterior and lateral tracheobronchial walls are typical for TO, a biopsy should be obtained to exclude amyloidosis.
KEYWORD
Tracheobronchopathia osteochondroplastica, AA amyloidosis
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