7 results
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
psittaci/avian, leptospirosis ... yersinia/rats, Q fever ... ) - Returning travelers ... Eosinophilic PNA (acute ... or chronic)
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Travelers from ... , acute HIV infection ... Cough, dyspnea - Pneumonia ... melioidosis, typhoid, pulmonary ... , Lassa fever, acute
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
differentiate between acute ... chronic consolidation ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Acute #Chronic
Based on the images alone, it is usually not possible to determine the cause of the
considered, like acute ... or chronic illness ... Lobar pneumonia ... with cough and fever ... Clinical #Diagnosis #Radiology
Eosinophilic Pneumonia
When to suspect Eosinophilic Pneumonia? Non-resolving pneumonia + BAL > 25% eosinophils + excluded more
common diagnoses Acute ... tobacco hx - Fever ... mechanical ventilation Chronic ... - Peripheral Consolidations ... AKA "inverse pulmonary
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
Lung Diseases • Acute ... Eosinophilic Pneumonia ... cough, SOB • Chronic ... Fungal, parasites; Travel ... Lung #Diseases #pulmonary
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Chronic Ground ... Hypersensitivity Pneumonia ... , COP, Chronic Eos ... Hemorrhage, Edema • Consolidation ... #radiology