19 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
perilymphatic distribution ... cysts, evenly distribution ... Diagnosis #Radiology #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
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 ... mSv 200 CXRs Chest ... #Nuclear #Comparison ... #Table #Risks # ... Testing #Study #
Syncope Diagnostic Testing and Evaluation: Cost Effectiveness
Frequency obtained - Abnormal findings - Helped determine etiology of
Syncope Diagnostic Testing ... enzymes, Head CT ... diagnosis #workup #testing ... Effectiveness #table ... #comparison
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
perilymphatic distribution ... Radiology #HRCT #CTChest ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
perilymphatic distribution ... Radiology #HRCT #CTChest ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
6 mSv 2 years CHEST ... ) — Chest 7 mSv ... #Nuclear #Comparison ... #Table #Risks # ... Testing #Study
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
perilymphatic distribution ... perilymphatic distribution ... Radiology #Pulmonary #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
Small Bowel Obstruction Testing Accuracy
#Diagnosis #SBO #Testing #Accuracy #Sensitivity #Specificity #KUB #AbdominalXRay #CT #POCUS #LikelihoodRatio #Comparison
Bowel Obstruction Testing ... Diagnosis #SBO #Testing ... AbdominalXRay #CT ... LikelihoodRatio #Comparison ... #Table
Vasopressors and Inotropes
 • Norepinephrine - Levophed - "Levo" - Generally thought of as the first
(arrhythmia in setting ... Ang II" - Sepsis/distributive ... criticalcare #summary #comparison ... #table #pharmacology
How much radiation is used in paediatric radiology examinations compared to other exposures?

Estimated dose - Days
0.04 mSv 4 days Chest ... mSv 8 months Chest ... #Nuclear #Comparison ... #Table #Risks # ... Testing #Study #