39 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
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
ILD caused by inhalation ... • Idiopathic pulmonary ... (DIP), Acute interstitial ... : Acute, Chronic ... #causes
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... • Sub-Valvular Disease ... Coronary Artery Disease ... Stable Angina • Acute ... Alveoli • Pneumonia
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Acute and Chronic ... Causes of Dyspnea ... Pleural effusion, Pneumonia ... poisoning, DKA, Fever ... #Chronic #Causes
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Acute bacterial ... infections • Acute ... Non-Infectious Causes ... • Leptospirosis ... • Malaria • Leptospirosis
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Differential Diagnosis Algorithm ... leaking out of pulmonary ... , Beomycin • Acute ... or Chronic Radiation ... #Diagnosis #Algorithm
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Diagnosis Framework Disease ... angioinvasive disease ... Abdominal pain, chronic ... factor • May cause ... Infections #HIV #AIDS #pulmonary
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Acute / Subacute ... : • Acute Infections ... abscess, Necrotizing Pneumonia ... 12 weeks): • Chronic ... #lesion #pulmonary
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
Eosinophilic Lung Diseases ... • Acute Eosinophilic ... Pneumonia (< 1 ... Fungal, parasites; Travel ... #pulmonary #differential