54 results
Spondylolysis & Spondylolisthesis: Pathogenesis and Clinical Findings

Pars interarticularis stress fracture (spondylolysis) - most frequently in the
hyperextension test ... (Stork test) ... • XR — scotty dog ... sign on oblique ... pathophysiology #signs
The PA-film shows a silhouette sign of the left heart border.
Even without looking at the lateral
shows a silhouette sign ... #Clinical #Radiology ... #CXR #Pneumonia ... SilhouetteSign #RadiologyAssistant
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
fractured carpal bone ... "pooping duck sign ... common carpal bone ... "pooping duck sign ... Wrist #Carpal #Radiology
On the left we see a chest film with a typical finger-in-glove shadow.
The HRCT shows focal
#Clinical #Radiology ... #CXR #CTChest # ... FingerInGlove #Sign ... #RadiologyAssistant
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
between all carpal bones ... "Terry Thomas" sign ... between all carpal bones ... ("Terry Thomas sign ... Scaphoid #Carpal #Radiology
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
posterior) and bone ... anterior sail sign ... can't make A-OK sign ... II-IV, pending orthopedic ... Elbow #Humerus #Radiology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On a CXR the most ... appreciate on a cest ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
feeding vessel sign ... feeding vessel sign ... #Clinical #Radiology ... #CXR #CTChest # ... SepticEmboli #Cavity #RadiologyAssistant
Here another patient with free abdominal air.
Notice the very thin regular line which is the diaphragm
first impression one ... #Clinical #Radiology ... #CXR #Free #Air ... FreeAir #Diaphragm #RadiologyAssistant
Chronic hypersensitivity pneumonitis
The key findings in chronic hypersensitivity pneumonitis are:
Mosaic pattern with areas of ground-glass atenuation
distortion in a mid zone ... #Clinical #Radiology ... #CXR #CTChest # ... Chronic #Fibrosis #RadiologyAssistant