8 results
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
→Activation of CD8 ... Auto-amplification loop Diagnosis ... +++: Virus (EBV, ... biologics (CMV +++, EBV ... of emergency, ICU
Idiopathic CD4 Lymphopenia (ICL) / Lymphocytopenia 

DIAGNOSTIC CRITERIA FOR ICL
 • Persistent CD4 T-cell lymphopenia
 •
DIAGNOSTIC ... CRITERIA FOR ICL ... myelodysplasia) • Infections ... EBV. CMV. ... #diagnosis #hematology
Acute Kidney Injury (AKI) - Differential Diagnosis Framework
Pre-Renal:
 • Hypovolemia, Cardiorenal, Distributive Shock, HRS, Hypercalcemia, Renal
Acute Kidney Injury ... GN: ANCA, Anti-GBM ... , C3/C4, Other ... AIN: Medication, Infection ... #nephrology #causes
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
- Differential Diagnosis ... cells per μL • Diagnosis ... effect/Edema • EBV ... and <25% culture positive ... #differential #diagnosis
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
myasthenia Diagnosis ... : - Bedside: ice ... aspiration and acute ... precipitated by: Drugs, infection ... #neurology
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... : - ANCA-positive ... anti-ANCA ab, anti-GBM ... ab, ANA, C3, C4 ... #nephrology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
- Differential Diagnosis ... Impairment: • Acute ... Postsynaptic: Myasthenia Gravis ... Coxsackie, HIV, CMV, EBV ... #neurology
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... virus • CMV • EBV ... Symptoms: • Acute ... • Gram stain: Positive ... #neurology #meningitis