19 results
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
X-ray 0.001 mSv ... ) — Chest 7 mSv ... X-ray 0.1 mSv 10 ... #PatientInfo #Radiology ... #Nuclear #Comparison
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Langerhans cell histiocytosis ... : 'signet ring sign ... #Radiology #CTChest ... #Differential #Comparison
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
"pooping duck sign ... "pooping duck sign ... Wrist #Carpal #Radiology ... #XRay #Diagnosis ... #Sports #MSK
X-ray limitations
It’s important to know the limitations of X-rays so we can correctly interpret them in
X-ray limitations ... consider better imaging—from ... UltraSound (POCUS) to CT ... #Diagnosis #Radiology ... #Limitations #Comparison
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
14th CXRs 2-view chest ... Chest CT 3 mSv 150 ... #PatientInfo #Radiology ... Radiation #Doses #Imaging ... #Nuclear #Comparison
Hamate Fracture on Wrist X-Ray

- point tenderness over the hamate should raise suspicion for a fracture,
Fracture on Wrist X-Ray ... are negative a CT ... with associated signs ... Fracture #WristXRay #Radiology ... #MSK #Orthopedics
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
anterior sail sign ... can't make A-OK sign ... Elbow #Humerus #Radiology ... #XRay #Diagnosis ... #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
"Terry Thomas" sign ... ("Terry Thomas sign ... Scaphoid #Carpal #Radiology ... #XRay #Diagnosis ... #Sports #MSK
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... knowledge about imaging ... On a Chest X-Ray ... Langerhans cell histiocytosis ... #Diagnosis #Radiology
How much radiation is used in paediatric radiology examinations compared to other exposures?

Estimated dose - Days
in paediatric radiology ... X-ray 0.01 mSv 1 ... mSv 8 months Chest ... Radiation #Doses #Imaging ... #Nuclear #Comparison