22 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... Negative Abscess ... : Aspergillus, Cryptococcus ... nocardia - Fungal: Cryptococcus ... Coccidiomycosis, Cryptococcus
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... • Most common cause ... Dermatitidis - Cryptococcus ... Abscess Differential ... causes #management
Causes of Cough and Hemoptysis
Acute Inflammation 
 - Laryngitis 
 - Tracheobronchitis 
 - Mycoplasma and
Causes of Cough ... Abscess - Asthma ... Cancer of the Lung ... Cough #Hemoptysis #Differential ... #Causes #Table
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
lesions • 80% with lung ... histoplasmosis, cryptococcus ... Syphilis • Pyogenic Abscess ... Lesions #Brain #differential ... #diagnosis #causes
Causes of Neutrophilia - Increased Neutrophils - Differential Diagnosis Algorithm
Infection
 • Bacterial
 • Abscess
 • Viral
Medications
Causes of Neutrophilia ... Diagnosis Algorithm ... Bacterial • Abscess ... Lung, Bladder, Colon ... #Causes #Hematology
Liver Mass - Differential Diagnosis Algorithm
Benign Cystic 
 • Cyst
 • Polycystic Liver Disease
 • Caroli's
Liver Mass - Differential ... Diagnosis Algorithm ... • Adenoma • Abscess ... Lung, Colon, Breast ... #Causes
Liver Mass - Differential Diagnosis Algorithm
Cystic:
 • Benign 
     - Simple: Simple
Liver Mass - Differential ... Diagnosis Algorithm ... - Infectious: Abscess ... secondary - Breast, Lung ... #Causes #Hepatology
Causes of Pleural Effusion - Differential Diagnosis Algorithm
Transudate - Hydrostatic
 • Congestive heart failure
 • Constrictive
Causes of Pleural ... Effusion - Differential ... Pneumonectomy • Trapped lung ... • Subphrenic abscess ... #Hepatology #causes
Lung Nodule - Differential Diagnosis Algorithm
Nodule on > 2 Years Without a Change in Size:
 •
Lung Nodule - Differential ... Diagnosis Algorithm ... Granuloma • Abscess ... #Nodule #Differential ... #Causes #Pulmonary
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
Back Pain - Differential ... (most common: lung ... (most common: lung ... #Diagnosis #causes ... #primarycare #table