11 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
: ill defined centrilobular ... #Clinical #Radiology ... #HRCT #CTChest ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... Hypersensitivity pneumonitis ... Pulmonary #HRCT #ChestCT ... #Differential # ... Table #Distribution
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis ... Clinical #Diagnosis #Radiology ... #Pulmonary #CTChest ... NodularPattern #Differential ... #Comparison #Table
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 ... #PatientInfo #Radiology ... #Nuclear #Comparison ... #Table #Risks #
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Hypersensitivity Pneumonitis ... HiRes #HighRes #Chest ... #pulmonary #radiology
Radiation Dose to Adults from Common Imaging Examinations
ABDOMINAL REGION
 - Computed Tomography (CT) — Abdomen and
6 mSv 2 years CHEST ... ) — Chest 7 mSv ... mSv 6 months - Chest ... #Nuclear #Comparison ... #Table #Risks #
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... Hypersensitivity Pneumonitis ... Clinical #Diagnosis #Radiology ... #CTChest #UIP # ... Comparison #Chronic
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Pneumonitis 3. ... disease: Pleuritic chest ... level seen • Chest ... CT Lung Abscess ... treatment until the chest
How much radiation is used in paediatric radiology examinations compared to other exposures?

Estimated dose - Days
in paediatric radiology ... 0.04 mSv 4 days Chest ... mSv 8 months Chest ... #Nuclear #Comparison ... #Table #Risks #
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
these non-specific CT ... there is a broad differential ... hypersensitivity pneumonitis ... #Clinical #Radiology ... #CTChest #RBILD