Opaque hemithorax

نویسندگان

  • Edson Marchiori
  • Bruno Hochhegger
  • Gláucia Zanetti
چکیده

Complete opacification of a hemithorax on chest X-ray is termed opaque hemithorax (OH) and is a common finding in emergency room patients. Attending physicians encountering an OH should be able to make an immediate decision regarding the most appropriate approach. The differential diagnosis of an OH is primarily based on the volume of the affected hemithorax, as determined by the position of the mediastinum (the position of the trachea providing the best reference for that): • increased hemithoracic volume—mediastinal shift to the unaffected side • reduced hemithoracic volume—mediastinal shift to the affected side • normal hemithoracic volume—no mediastinal shift The differential diagnosis of an OH with increased volume includes large pleural effusions (which constitute the most frequent cause of OH) and large thoracic masses, especially in children. In most cases, these conditions can be easily differentiated by ultrasound or CT.

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عنوان ژورنال:

دوره 43  شماره 

صفحات  -

تاریخ انتشار 2017