109 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 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 ... Hypersensitivity Pneumonitis ... , RB-ILD, Pneumoconiosis ... #pulmonary
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... Hypersensitivity pneumonitis ... edema #Diagnosis ... HRCT #ChestCT #Differential ... #Table #Distribution
ILD of Known Cause - Differential Diagnosis
Exposure:
 • Occupational: Asbestosis, Silicosis, Hypersensitivity, Pneumonitis
 • Treatment Related:
ILD of Known Cause ... - Differential ... Diagnosis Exposure ... Hypersensitivity, Pneumonitis ... lung #disease #pulmonary
Radiographic appearances of pulmonary disease in HIV-infected patients

By Dr. Sara Dong @swinndong via #IDFellowCase

#ID  #Infectious
appearances of pulmonary ... IDFellowCase #ID ... #Infectious Diseases ... #Infections #Differential ... #Ddx #Diagnosis
Cough - Diagnostic Schema

Infectious: URTI, LRTI, Bacterial, Viral
Irritant/Exposure: Allergic, Post-infectious, Pneumonitis, ACEi, PTX, Foreign Body
Airway Disease:
Cough - Diagnostic ... Schema Infectious ... , Pneumonitis, ACEi ... Autoimmune Vasculitis, ILD ... Acute #Chronic #Differential
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... NodularPattern #Differential ... #Comparison #Table
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
Non-Resolving Pneumonias ... Etiologies Unusual Infections ... Hypersensitivity pneumonitis ... NonResolving #Pneumonia #diagnosis ... #pulmonary #differential
Pulmonary complications of targeted therapy
-Immune checkpoint inhibitors (e.g. pembrolizumab)
-Pneumonitis is uncommon (~5% of patients) but can
Pulmonary complications ... exclusion: rule out infection ... associated with a clinical ... diagnosis pneumonitis ... #Clinical #Diagnosis
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... Diagnosis Algorithm ... Inflammatory Conditions: Rheumatologic ... Thrombocytosis #Platelets #Differential ... #Diagnosis #Algorithm