16 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Acute / Subacute ... : • Acute Infections ... Necrotizing Pneumonia ... Septic Emboli, Fungal ... #lesion #pulmonary
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
Nocardia) - Endemic Fungi ... yersinia/rats, Q fever ... ) - Returning travelers ... Eosinophilic PNA (acute ... or chronic)
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
differentiate between acute ... chronic consolidation ... - Lung neoplasms ... Diagnosis #Radiology #Pulmonary ... #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 ... nodular interstitial lung
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
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Pseudomonas FUNGAL ... dyspnea • Lobar consolidation ... Abdominal pain, chronic ... Infections #HIV #AIDS #pulmonary
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
to Eosinophilic Lung ... Diseases • Acute ... Infectious (Variable) - Fungal ... , parasites; Travel ... #Diseases #pulmonary
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
cough, dyspnea, fever ... • HRCT: patchy consolidation ... , Chronic eosinophilia ... pneumonia, Pulmonary ... #COP #BOOP #pulmonary
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
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Infection (TB, Fungal ... • Chronic Ground ... Hypersensitivity Pneumonia ... , COP, Chronic Eos ... Hemorrhage, Edema • Consolidation