Chest Teaching File

---

Right Middle Lobe Pneumonia

PA and lateral views show increased opacity obscuring the right heart border on the PA view and anteriorly over the heart on the lateral view. The right middle lobe is the part of the long adjacent to the right heart border. A silhouette sign involving the right heart border indicates a process in the right middle lobe, in this case a pneumonia.

[ WSU Radiology Home Page | Main Teaching File | Chest Teaching File | Interesting Case Review ]