35 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
Causes of Cough and Hemoptysis
Acute Inflammation 
 - Laryngitis 
 - Tracheobronchitis 
 - Mycoplasma and
and Hemoptysis Acute ... Mycoplasma and Viral Pneumonias ... - Bacterial Pneumonias ... Bronchiectasis - Pulmonary ... #Differential #Causes
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Abdominal pain, chronic ... Legionella: • Nausea ... factor • May cause ... reported in 100% of cases ... Infections #HIV #AIDS #pulmonary
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Differential Diagnosis Algorithm ... Stable Angina • Acute ... Alveoli • Pneumonia ... Metabolic Acidosis #Chronic
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 Acute Pediatric Cough - Differential Diagnosis Algorithm
No Fever, No Tachypnea
 - Normal Chest Auscultation
Causes of Acute ... No Fever, No Tachypnea ... Fever, Tachypnea ... #Acute #Cough ... #Causes #Peds #
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
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
Causes of Acute Dyspnea - Differential Diagnosis Algorithm
Cardiovascular
 • Myocardial Infarction*
 • Cardiac Tamponade*
 • CHF
Pleural
Causes of Acute ... Parenchymal • Pneumonia ... Vascular • Pulmonary ... Anaphylaxis* #Acute ... #Causes