5 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... negative culture Brain ... : Aspergillus, Cryptococcus ... nocardia - Fungal: Cryptococcus ... Coccidiomycosis, Cryptococcus
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
histoplasmosis, cryptococcus ... Syphilis • Pyogenic Abscess ... RingEnhancing #Lesions #Brain ... differential #diagnosis #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... antibiotics once stable ... shows a small, stable ... Dermatitidis - Cryptococcus ... #differential #causes
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
valves • MRI brain ... in up to 30% of cases ... common, Aortic root abscess ... #Endocarditis #comparison ... Marantic #diagnosis #table
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Usually composed ... to have a "wood-grain ... PrathitKulkarni #Erythemas #comparison ... #table #differential ... #dermatology #compared