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Abstract

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Article in Japanese

Diagnostic Imaging

Pulmonary cyst arising after bronchial thermoplasty

Kohei Nishida  Mari Miki  Nobuhiko Sawa  Hiroyuki Kagawa  Keisuke Miki  Seigo Kitada 

Department of Respiratory Medicine, National Hospital Organization Toneyama National Hospital

ABSTRACT

Despite treatment for aspirin-induced asthma for 27 years, a 57-year-old male suffered repeated attacks. He recently underwent a series of bronchial thermoplasty (BT) sessions for refractory asthma at our hospital. A pulmonary cyst containing fluid appeared in the middle lobe of the right lung the day after the third BT session. The cyst was not treated because there were no signs of infection, and it began to shrink over time. In our view, possible causes of the cyst include mucus plugs, a change in part of the airway caused by the high-frequency stimulation of BT having resulted in a one-way valve, or laceration of the lung by the thermal energy from BT.

KEYWORDS

Bronchial asthma  Complication  Pneumatocele  Traumatic pulmonary cyst 

Received 28 Aug 2017 / Accepted 19 Oct 2017

AJRS, 7(1): 74-77, 2018

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