Silhouette Sign on Chest X-Ray [UndergroundMed]

[Allibaby]

This is one of the most useful signs in chest radiology.] It describes the loss of a normal lung/soft tissue interface or "silhouette", caused by any pathology which either replaces or displaces normal air filled lung. This sign is commonly applied to heart, mediastinum, chest wall and diaphragm. Eg, right lower lobe consolidation may obliterate part or all of the right hemidiaphragm, but the right cardiac border would still be clearly defined due to normal aeration of the adjacent middle lobe.

[starrystel]

Thanks a mil! For the 1st time, I truly understand the silhouette sign. Awesome vid!

[AyukotangLord-Jayz]

great vid
with respect, I'll love to make a small correction 0:35 ;
the division of the radiodensities into air, connective tissue, and bone should rather be soft tissue instead of connective tissue ( bone is also connective tissue btw)

Great video though 😊

[ah]

Such an awesome explanation ma'am...Lots of Respect and Love India ❤️

[Allibaby]

One of the most useful signs in chest radiology is the silhouette sign. This was described by Dr. Ben Felson. The silhouette sign is in essence elimination of the silhouette or loss of lung/soft tissue interface caused by a mass or fluid in the normally air filled lung. In other words, if an intrathoracic opacity is in anatomic contact with, for example, the heart border, then the opacity will obscure that border. The sign is commonly applied to the heart, aorta, chest wall, and diaphragm. The location of this abnormality can help to determine the location anatomically.  

[adiimimi]

Thank you so much. Very well understood

[abdullahishosmanomar]

This vid was quite helpful
Now i can say i know
Thanks🙏

[ah]

Just loved watching her explanation.
Can anyone tell me ma'am's name...or where can I find more of her videos.

[emad]

so RLL consolidation can never be in touch with heart? how is that possible?