93 results
Lung Nodules - Differential Diagnosis by Distribution
 • Centrilobular: Hypersensitivity Pneumonitis, RB-ILD, Pneumoconiosis, Infectious Bronchiolitis, Vasculitis,
Lung Nodules - Differential ... Diagnosis by Distribution ... Hypersensitivity Pneumonitis ... , RB-ILD, Pneumoconiosis ... #pulmonary
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... bronchiolitis (RB-ILD ... Hypersensitivity pneumonitis ... HRCT #ChestCT #Differential ... #Table #Distribution
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Hypersensitivity pneumonitis ... • Radiation pneumonitis ... • Idiopathic pulmonary ... #diagnosis #differential ... #pulmonary #causes
Exposure Related ILD

 • Hypersensitivity pneumonitis
 • Pneumoconioses 
 • Radiation pneumonitis
 • Medication-induced ILD

Andrew Sanchez
Exposure Related ILD ... Hypersensitivity pneumonitis ... • Radiation pneumonitis ... #diagnosis #pulmonary ... #Interstitial #Lung
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
periphery of the lung ... most typical of pulmonary ... it is seen in pneumonias ... Diagnosis #Radiology #CXR ... #Batwing #Differential
Schematic classification of interstitial lung diseases according to aetiology. The finding of histological usual interstitial pneumonitis
of interstitial lung ... usual interstitial pneumonitis ... of idiopathic pulmonary ... #ILD #Classification ... #LungDisease #Pulmonary
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis ... perilymphatic distribution ... Diagnosis #Radiology #Pulmonary ... NodularPattern #Differential ... #Comparison #Table
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
ILD of Known Cause ... - Differential ... Hypersensitivity, Pneumonitis ... #interstitial #lung ... #disease #pulmonary
Approach to the diagnosis of chronic hypersensitivity pneumonitis. 
*Consider additional test: bronchoscopy with bronchoalveolar lavage, transbronchial
hypersensitivity pneumonitis ... hypersensitivity pneumonitis ... hypersensitivity #pneumonitis ... #pulmonary #diagnosis ... algorithm #HP #ILD
Causes of Cough and Hemoptysis
Acute Inflammation 
 - Laryngitis 
 - Tracheobronchitis 
 - Mycoplasma and
- Bacterial Pneumonias ... Tuberculosis - Lung ... Cancer of the Lung ... Cough #Hemoptysis #Differential ... #Causes #Table