79 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... bronchiolitis (RB-ILD ... pneumonitis - Sarcoidosis ... edema #Diagnosis ... #Upper #Lower #RadiologyAssistant
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
• Idiopathic pulmonary ... : • Sarcoidosis ... Acute, Chronic • Pulmonary ... #diagnosis #differential ... #pulmonary #causes
Lung Nodules - Differential Diagnosis by Distribution
 • Centrilobular: Hypersensitivity Pneumonitis, RB-ILD, Pneumoconiosis, Infectious Bronchiolitis, Vasculitis,
Lung Nodules - Differential ... Diagnosis by Distribution ... Pneumonitis, RB-ILD ... Perilymphatic: Sarcoidosis ... #Distribution #pulmonary
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Sarcoidosis: nodules ... Sarcoidosis: nodules ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... Comparison #Table #RadiologyAssistant
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
ILD of Known Cause ... - Differential Diagnosis ... Granulomatous DX: Sarcoidosis ... #interstitial #lung ... #disease #pulmonary
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Hypersensitivity pneumonitis: ill ... Sarcoidosis: nodules ... #Clinical #Radiology ... Comparison #Table #RadiologyAssistant
Hilar and mediastinal lymphadenopathy
In sarcoidosis the common pattern is right paratracheal and bilateral hilar adenopathy ('1-2-3-sign').
In
lymphadenopathy In sarcoidosis ... In lung carcinoma ... #Diagnosis #Radiology ... #Pulmonary #Mediastinal ... #Differential #RadiologyAssistant
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
commonly seen in sarcoidosis ... in differential diagnosis ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #RadiologyAssistant
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
, amyloidosis, sarcoidosis ... , mets to the lung ... Halo #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Here are the most common examples of these four patterns on a chest x-ray (click image
opacities - Fine Nodular ... mass - Solitary Pulmonary ... Masses Atelectasis #Diagnosis ... #Clinical #Radiology ... Consolidation #Patterns #RadiologyAssistant