Frontal Xray Signs of Lobar Consolidation RUL loss of upper right mediastinal border RML loss of right heart border RLL loss of right hemidiaphram LUL loss of upper left ID: 353057
Download Presentation The PPT/PDF document "Silhouette Sign" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Silhouette SignSlide2
Frontal X-ray Signs of Lobar Consolidation
RUL
– loss of upper right
mediastinal
border
RML
– loss of right heart border
RLL
– loss of right
hemidiaphram
LUL
– loss of upper left
mediastinal
border
LINGULA
– loss of left heart border
LLL
– loss of left
hemidiaphramSlide3
Frontal X-ray Signs of Lobar Consolidation
SILHOUETTE SIGN
– for localizing lesion from frontal chest film. Intra-thoracic air space occupying lesions touching a soft tissue structure will obliterate the air soft tissue interface
Examples include:
Atelectasis
Pneumonia
NeoplasmSlide4
RLL Pneumonia
Density at the right lateral diaphragm
Obliteration of lateral diaphragm borderSlide5
RLL Pneumonia
Density at the mid diaphragm
Sharp margination at the major fissure (arrows)Slide6
Right Middle Lobe PneumoniaSlide7
LUL Lingular Pneumonia
Obliterated left cardiac borderSlide8
LUL
Lingular Pneumonia Lateral
Consolidation anterior to the major fissure
Compare to PA exam Slide9
LLL Pneumonia
Air space disease left lower lobe
Density behind heart
Obliteration of left diaphragm at edge of heart
Left heart border preservedSlide10
LLL Pneumonia
Note obliteration of the posterior portion of the left diaphragm (arrows)
Right diaphragm clearly seen