33 results
Lung Abscess - Diagnosis and Management Summary

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

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
Mycobacterium abscessus ... with underlying lung ... disease. 15% mortality ... It can also cause ... Mycobacterium #diagnosis #differential
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
Back Pain - Differential ... Manifestations: • Infection ... : Epidural abscess ... , Aneurysm • Pancreas ... #Diagnosis #causes
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Chronic Cough - Differential ... sweats, chills (infection ... disease or CHF) ... refer + order CT ... Diagnosis #Algorithm #causes
Liver Mass - Differential Diagnosis Algorithm
Cystic:
 • Benign 
     - Simple: Simple
Polycystic Liver Disease ... Benign - Infectious ... : Abscess ... secondary - Breast, Lung ... Diagnosis #Algorithm #Causes
Causes of Antibiotic Failure - Differential Diagnosis Framework
Diagnosis:
 • Non-Infectious: Malignant, Autoimmune, Drug-related (NMS, serotonin syndrome,
Causes of Antibiotic ... Failure - Differential ... Source control (abscess ... (daptomycin in lungs ... • Secondary to Treatment
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
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
Ear Pain (Otalgia) - Differential Diagnosis Framework

Primary Otalgia 
 - Pain that originates from the ear
Pain (Otalgia) - Differential ... (caries, abscess ... subdural hematoma, lung ... Gastrointestinal disease ... disease processes
Causes of Intestinal Obstruction - Differential Diagnosis
Lesions Extrinsic to the Intestinal Wall:
 • Adhesions: Postoperative, Congenital,
Causes of Intestinal ... Congenital: Annular pancreas ... Intra-abdominal abscess ... Inflammatory: Crohn's disease ... Eosinophilic granuloma • Infections