10 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 ... - Cryptogenic
Interstitial Lung Diseases (ILD)
Exposure-Related ILD (a.k.a. extrinsic allergic alveolitis): 
 • Hypersensitivity pneumonitis, Farmer's lung, Bird
• Idiopathic pulmonary ... (NSIP), Cryptogenic ... (COP), Respiratory ... (DIP), Acute interstitial ... : Acute, 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
Bradycardia - Differential Diagnosis Framework

BRADI Mnemonic
 • BRASH/Hyperkalemia
 • Reduced oxygen/Glucose/Temp
 • ACS
 • Drugs
 •
Diagnosis Framework BRADI ... Hyperkalemia Pulmonary ... • Chagas disease ... • Acute rheumatic ... Babesiosis • Leptospirosis
Cryptogenic Organizing Pneumonia - Illness Script

PATHOPHYSIOLOGY: Unknown trigger, reversible inflammatory/fibroproliferative process. Polypoid fibroblastic aggregates that plug
/SYMPTOMS: • Acute ... Cough, dyspnea, fever ... steroids for severe disease ... TylerLarsenMD #COP ... #management #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
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
adenocarcinoma in situ; COP ... , cryptogenic organising ... ; PZ, pulmonary ... #Diagnosis #Pulmonary ... #Differential #Algorithm
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
• Sub-Valvular Disease ... Stable Angina • Acute ... • Asthma • COPD ... Alveoli • Pneumonia ... • ARDS • COPD
Acute and Chronic Causes of Dyspnea - Differential Diagnosis
Pulmonary/Chest Wall:
 • Acute: Trauma, COPD exacerbation, Asthma
Differential Diagnosis Pulmonary ... : Trauma, COPD exacerbation ... Pleural effusion, Pneumonia ... Chronic: Asthma, COPD ... poisoning, DKA, Fever
Based on the images alone, it is usually not possible to determine the cause of the
considered, like acute ... Lobar pneumonia ... with cough and fever ... (OP) - multiple ... interstitial lung disease