alexa A Stable Blunt Costophrenic Angle in Healthy Subjects, Associated with Dysanapsis and Airflow Limitation

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A Stable Blunt Costophrenic Angle in Healthy Subjects, Associated with Dysanapsis and Airflow Limitation

A blunt costophrenic (CP) angle in chest radiographs is known as a sign of pleural effusion, but is also observed in pulmonary emphysema. However, healthy young adult subjects with a blunt CP angle were often encountered in company annual medical examinations. The goal of the study was to evaluate radiographic measurements, spirometry, and cough symptoms in such subjects with a stable blunt CP angle obtained in a company medical check to clarify the underlining condition. Radiographic measurements were made for the diameter of the main bronchus (MB), the tracheal width (TR), and the lung area (LA) estimated from the product of the height of the right lung and internal chest diameter in posteroanterior chest radiographs. The MB/LA and TR/LA ratios were calculated as markers of dysanapsis. An interview was performed to obtain information on cough symptoms.

 

Citation: Matsumoto-Yamazaki M, Ohwada A, Shiota S, Takahashi K (2014) A Stable Blunt Costophrenic Angle in Healthy Subjects, Associated With Dysanapsis and Airflow Limitation. J Pulm Respir Med 4:210.

 

 
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