14 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... granulomatosis: • EBV-associated ... splenomegaly Other infections ... multiple lesions Infectious ... causes #radiology #neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... infections result ... headache, altered mental ... effect/Edema • EBV ... InfectiousDiseases #Neurology
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
allopurinol), Infection ... anti-ANCA ab, anti-GBM ... , anti-CCP • CXR ... Bronchoscopy with serial ... differential #diagnosis #nephrology
Rapidly Progressive Glomerulonephritis (RPGN) 
 - Loss of kidney function over a short period of tirne
cryoglobulinemia, post-infectious ... Basement Membrane (GBM ... Linear, ribbon-like GBM ... anti-proteinase 3 (CPR ... Differential #Diagnosis #Nephrology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
pulmonary etc) • CNS ... Vasculitis • Infectious ... Myeloma/amyloid • Infectious ... Coxsackie, HIV, CMV, EBV ... Differential #Diagnosis #neurology
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
lyme • Altered mental ... brain lesion • CNS ... infection (e.g. ... Diagnosis #Algorithm #neurology
Radiation Injury
Acute Radiation Toxicity primarily affects rapidly dividing cells based on dosage
Hematopoiteic - Pancytopenia, Infection
 •
Pancytopenia, Infection ... Hours Cardio/CNS ... Circuatory collapse, CNS ... 1 Gy = ~10,000 CXRs ... - MH/CCF/CWRU EM
Leukemias Overview: ALL, CML, AML, APML, CLL

Acute leukemias > 20% blasts in the peripheral blood smear
Malaise, bleeding, infections ... involvement • 30%: CNS ... pain, bleeding, infections ... leukostasis syndrome: CNS ... manifestations, hypoxia, CXR
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
Schedule: Why we ... replicates within CNS ... induces vascular & CNS ... and URT causes CNS ... tachypnea, otitis media
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... virus • CMV • EBV ... Singh @rav7ks #CNS ... #Infections #differential ... #diagnosis #neurology