26 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: 'signet ring sign ... emphysema: no walls ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... Comparison #Table #RadiologyAssistant
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
"Terry Thomas" sign ... ("Terry Thomas sign ... MH/CCF/CWRU EM Res ... Scaphoid #Carpal #Radiology ... #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
"pooping duck sign ... • Mechanism: Fall ... MH/CCF/CWRU EM Res ... Wrist #Carpal #Radiology ... #Sports #MSK
Pes Anserine Bursitis - MSK Radiology
Imaging Findings:
 • T2-hyperintense fluid-like signal along the medial aspect of
- MSK Radiology ... include bursal wall ... #mri #clinical ... #Radiology #diagnosis ... #msk
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
lateral wrist XR ... • Mechanism: Fall ... Disposition: Pending orthopedic ... Wrist #Carpal #Radiology ... #Sports #MSK
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
• Mechanism: fall ... can't make A-OK sign ... No, if simple; Yes ... Dislocation #Posterior #Radiology ... #Sports #MSK
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
attached to the chest wall ... There is a lung cyst ... #Clinical #Radiology ... #CXR #Pneumothorax ... Lymphangioleiomyomatosis #LAM #RadiologyAssistant
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
anterior sail sign ... • Mechanism: Fall ... can't make A-OK sign ... Elbow #Humerus #Radiology ... #MSK
Galeazzi Fracture 
Fracture of distal radial shaft with distal radial-ulnar joint disruption. Remember “MUGR” to recall
Radius fracture will ... be obvious; signs ... Radial #Distal #Radiology ... Diagnosis #Management #Orthopedics ... #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
anterior sail sign ... • Mechanism: Fall ... II-IV, pending orthopedic ... Fracture #Elbow #Radiology ... #MSK