13 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
Radiographic Features of Pulmonary Diseases
 - Pneumonia
 - Atelectasis
 - Emphysema
 - Pneumothorax
 - Effusion
 -
Diseases - Pneumonia ... - Nodular - Acute ... Glass Opacity - Chronic ... Patterns #Lung #CXR ... #XRay #ChestCT
Causes of Acute Pediatric Cough - Differential Diagnosis Algorithm
No Fever, No Tachypnea
 - Normal Chest Auscultation
Causes of Acute ... No Fever, No Tachypnea ... - Normal Chest ... Fever, Tachypnea ... #Acute #Cough
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
Eosinophilic Pneumonia
When to suspect Eosinophilic Pneumonia? Non-resolving pneumonia + BAL > 25% eosinophils + excluded more
common diagnoses Acute ... tobacco hx - Fever ... Dyspnea+, Pleuritic Chest ... mechanical ventilation Chronic ... #diagnosis #pulmonary
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Acute and Chronic ... Differential Diagnosis Pulmonary ... /Chest Wall: • ... Pleural effusion, Pneumonia ... poisoning, DKA, Fever
Based on the images alone, it is usually not possible to determine the cause of the
or chronic illness ... between these chest ... Lobar pneumonia ... with cough and fever ... Diagnosis #Radiology #CXR
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Differential Diagnosis Algorithm ... Stable Angina • Acute ... Thickening/Masses Chest ... Alveoli • Pneumonia
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Chronic alcoholism ... : • 80% have fever ... Blood cultures • CXR ... early disease) • CXR ... Lung #Abscess #pulmonary