122 results
Travel History - Clues to Infectious Disease Diagnosis in a Traveler 
 • Where did you
Clues to Infectious ... association • How long ... → Leptospirosis ... Herpesvirus B infection ... InfectiousDiseases #Infections
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
Fever in Returning Travelers ... Cough, dyspnea - Pneumonia ... melioidosis, typhoid, pulmonary ... eosinophilia - Tropical pulmonary ... Fever #Returning #Traveler
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
Non-Resolving Pneumonias ... Etiologies Unusual Infections ... psittaci/avian, leptospirosis ... ) - Returning travelers ... #NonResolving #Pneumonia
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Causes: Mucormycosis ... Causes: Granulomatosis ... Dermatomyositis, Lung ... , Pulmonary embolism ... Differential #Diagnosis #pulmonary
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Legionella: • Nausea ... factor • May cause ... #Infections #HIV ... #AIDS #pulmonary
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 ... Acute, Chronic • Pulmonary ... #differential #pulmonary ... #causes
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
Subacute: • Acute Infections ... Necrotizing Pneumonia ... Emboli, Fungal Infection ... ): • Chronic Infections ... Algorithm #lesion #pulmonary
Causes of Interstitial Lung Disease - Differential Diagnosis Algorithm
Idiopathic Interstitial Pneumonia
 • (UIP) Usual Interstitial Pneumonia
Causes of Interstitial ... Lymphangioleiomyomatosis (LAM), • Pulmonary ... leaking out of pulmonary ... intersitial space Infection ... Diseases #ILD #Causes
Causes of Cough and Hemoptysis
Acute Inflammation 
 - Laryngitis 
 - Tracheobronchitis 
 - Mycoplasma and
Causes of Cough ... - Bacterial Pneumonias ... Tuberculosis - Lung ... Cancer of the Lung ... #Differential #Causes
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
Bilateral B-Lines in case ... of Pneumonia on ... immunosuppression, travel ... sliding: Pulmonary ... interstitial diffuse infections