53 results
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
Hypersensitivity pneumonitis ... • Radiation pneumonitis ... Idiopathic Interstitial Pneumonias ... pneumonia: Acute, Chronic ... #diagnosis #differential
Approach to the diagnosis of chronic hypersensitivity pneumonitis. 
*Consider additional test: bronchoscopy with bronchoalveolar lavage, transbronchial
the diagnosis of chronic ... hypersensitivity pneumonitis ... cHP = chronic hypersensitivity ... pneumonitis; HRCT ... 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
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
Lung Nodules - Differential Diagnosis by Distribution
 • Centrilobular: Hypersensitivity Pneumonitis, RB-ILD, Pneumoconiosis, Infectious Bronchiolitis, Vasculitis,
Lung Nodules - Differential ... Hypersensitivity Pneumonitis ... , RB-ILD, Pneumoconiosis ... BrighamChiefs #Lung ... #Nodules #Differential
Cough - Diagnostic Schema

Infectious: URTI, LRTI, Bacterial, Viral
Irritant/Exposure: Allergic, Post-infectious, Pneumonitis, ACEi, PTX, Foreign Body
Airway Disease:
Post-infectious, Pneumonitis ... Autoimmune Vasculitis, ILD ... Malignancy: Lung ... Schema #Acute #Chronic ... #Differential #
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
ILD of Known Cause ... - Differential ... Hypersensitivity, Pneumonitis ... BrighamChiefs #ILD ... #interstitial #lung
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
other interstitial pneumonias ... - Imaging: • CXR ... Hypersensitivity pneumonitis ... organizing pneumonia, Chronic ... BOOP #pulmonary #ILD
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Chronic Cough - ... Differential Diagnosis ... Dyspnea (underlying lung ... ) • Abnormal CXR ... disease #Chronic
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
it is seen in pneumonias ... frequently seen in chronic ... lung disease. ... Diagnosis #Radiology #CXR ... #Batwing #Differential