21 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 ... RingEnhancing #Lesions #Brain ... differential #diagnosis #causes
Common Fungal Pathology 
 • Candida - Small yeast intermingled with pseudohyphae
 • Aspergillosis - Septate
broad based bud • Cryptococcus ... Fungal #Pathology #clinical ... #microscopy #table
Differential Diagnosis for Concurrent Brain and Lung Infections
 • Bacteria: Strep anginosus, Staph aureus, Klebsiella pneumoniae
for Concurrent Brain ... Mucormycosis, Cryptococcus ... @ID_fellows #Brain ... Differential #Diagnosis #causes
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Concurrent Brain ... Mucormycosis, Cryptococcus ... febrilepodcast #Brain ... Differential #Diagnosis #causes
Concurrent Brain and Lung Lesions
 • Bacteria: Nocardia spp, Strep anginosus, Staph aureus, Klebsiella pneumoniae (hypervirulent),
Concurrent Brain ... Mucormycosis, Cryptococcus ... febrilepodcast #Brain ... Differential #Diagnosis #causes
Hemiballismus on Physical Exam secondary to Cryptococcal fungal infection
MRI showed 2 pockets of infection on both
Exam secondary to Cryptococcal ... both sides of his brain ... #PhysicalExam #clinical
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Lung Abscess - Clinical ... shows a small, stable ... Dermatitidis - Cryptococcus ... #differential #causes
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
should be based on clinical ... present in 15% of cases ... Demyelinating disease caused ... culture positive Cryptococcal ... lesions • CSF cryptococcal
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
has five major clinical ... Fluconazole CRYPTOCOCCUS ... level, presence of cryptococcal ... CSF and serum Cryptococcal ... • Sinusitis • Brain