English: This patient presented with acute onset of dyspnoea. The frontal chest radiograph is the key to diagnosis. It shows evidence of both interstitial and alveolar oedema. Alveolar oedema manifests as ill-defined nodular opacities tending to confluence (see image with arrows). Interstitial oedema can be seen as peripheral septal lines - Kerley B lines (arrowheads).
Peripheral septal lines are due to thickening of the interlobular septa. They are 1-3cm long and extend to the pleural surface. They may be due to pulmonary venous hypertension, as in this case. Other causes are: lymphangitis carcinomatosis; pneumoconioses; sarcoidosis; and pulmonary lymphoma. Radiopedia
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page.
The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by a Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2009072410040687.
{{Information |Description ={{en|1=This patient presented with acute onset of dyspnoea. The frontal chest radiograph is the key to diagnosis. It shows evidence of both interstitial and alveolar oedema. Alveolar oedema manifests as ill-defined nodular o