34 results
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... seen • Chest CT ... Abscess Differential ... causes #management
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
Mycobacterium abscessus ... most likely to cause ... with underlying lung ... It can also cause ... Mycobacterium #diagnosis #differential
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
Manifestations: • Infection ... (most common: lung ... (most common: lung ... , Aneurysm • Pancreas ... #Diagnosis #causes
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
sweats, chills (infection ... Dyspnea (underlying lung ... refer + order CT ... History of cancer, lung ... Diagnosis #Algorithm #causes
Liver Mass - Differential Diagnosis Algorithm
Cystic:
 • Benign 
     - Simple: Simple
Polycystic Liver Disease ... Benign - Infectious ... : Abscess ... secondary - Breast, Lung ... Diagnosis #Algorithm #Causes
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
status NTM Cause ... - M. abscessus ... chelonae • M abscessus ... Imaging, high res CT ... #differential #
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
in HIV/AIDS Patients ... complex • Nodular/Masses ... Actinomyces spp., NHL; Lung ... tuberculosis Infectious ... #differential #
Bilateral B-Lines in case of Pneumonia on Lung POCUS

Young healthy pt with fever/dyspnea. POCUS lung exam
Bilateral B-Lines in case ... Differential Bilat ... Pulmonary edema, ARDS ... disease, interstitial ... diffuse infections
Hemoptysis - Differential Diagnosis Framework
Airways: 
 • Bronchitis
 • Bronchiectasis
 • Malignancy: Primary bronchogenic CA, Endobronchial
Parenchyma: • Infection ... westermani, PNA, Lung ... abscess, Aspergillosis ... syndrome • Valvular Disease ... Diagnosis #pulmonary #causes
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
lesions • 80% with lung ... multiple lesions Infectious ... Syphilis • Pyogenic Abscess ... Lesions #Brain #differential ... #diagnosis #causes