Subpulmonic effusion

A subpulmonic effusion is excess fluid that collects at the base of the lung, in the space between the pleura and diaphragm. It is a type of pleural effusion in which the fluid collects in this particular space, but can be "layered out" with decubitus chest radiographs. There is minimal nature of costophrenic angle blunting usually found with larger pleural effusions. The occult nature of the effusion can be suspected indirectly on radiograph by elevation of the right diaphragmatic border with a lateral peak and medial flattening. The presence of the gastric bubble on the left with an abnormal distance between its superior margin and the border of the left diaphragm of more than 2 cm can also suggest the diagnosis. Lateral decubitus views, with the patient lying on their side, can confirm the effusion as it will layer along the lateral chest wall.[1][2]

References

  1. ↑ Schwarz, MI; Marmorstein, BL (February 1975). "A new radiologic sign of subpulmonic effusion.". Chest. 67 (2): 176–8. doi:10.1378/chest.67.2.176. PMID 1116393.
  2. ↑ Almeida, FA; Eiger, G (March 2008). "Subpulmonic effusion.". Internal medicine journal. 38 (3): 216–7. doi:10.1111/j.1445-5994.2007.01619.x. PMID 18290818.
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