23 results
Cavitary Lung Disease - Differential Diagnosis and Workup Algorithm
Acute / Subacute:
 • Acute Infections: Lung abscess,
: Lung abscess, ... Septic Emboli, Fungal ... Infection, Nocardia ... : TB, NTB, Fungal ... Algorithm #lesion #pulmonary
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
rickettsioses, amebic abscess ... melioidosis, typhoid, pulmonary ... eosinophilia - Tropical pulmonary ... , amebic liver abscess ... , amebic liver abscess
Lung Abscess
Microbiology:
 • Polymicrobial 
 • Anaerobes (most common) 
Clinical: 
 • Indolent symptoms that evolve
Lung Abscess Microbiology ... to rnonths • Fever ... meropenem) #Lung ... #Abscess #Diagnosis ... #Pulmonary #Clinical
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Abscess, bacteremia ... • Leptospirosis ... • Malaria • Leptospirosis ... Brucellosis • Liver or lung ... abscess • Sub-acute
Hemoptysis Differential Diagnosis Framework
Cardiovascular: Pulmonary embolism, Heart failure, Vasculitis, Valvular disease, Arteriovenous malformation
Pulmonary - Airway: Bronchitis,
Cardiovascular: Pulmonary ... Arteriovenous malformation Pulmonary ... Parenchyma: Pneumonia, Lung ... abscess, Tuberculosis ... , Fungal infection
CAVITY – a useful mnemonic for the causes of a cavitating lung mass.

C = cancer
of a cavitating lung ... embolus I = infection ... - pulmonary abscess ... (TB, fungal, staph ... #Differential #Lung
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... : • 80% have fever ... Prevotella • Fungal ... #Abscess #pulmonary
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Diagnosis: • Non-Infectious ... bacteria: Viral, Fungal ... Source control (abscess ... (daptomycin in lungs ... SJS, DIHS, drug fever
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Illnesses: • Pulmonary ... Presentation: Fever ... Manifestations: • Fever ... • Fever and weight ... diagnosis • Microbiologic
Non-Resolving Pneumonias: Etiologies
Unusual Infections:
 - Immunocompromised patients (e.g.: Mycobacterium, Aspergillosis, Nocardia)
 - Endemic Fungi (e.g.: Histoplasmosis,
Etiologies Unusual Infections ... Nocardia) - Endemic Fungi ... psittaci/avian, leptospirosis ... yersinia/rats, Q fever ... Others: - Pulmonary