9 results
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
symptomatology Differential ... Diagnosis for Pulmonary ... : - ANCA-positive ... anti-ANCA ab, anti-GBM ... resolution chest CT
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
(COVID19, CMV/EBV ... Illness Myopathy (ICU ... #Elevated #CK #differential ... #diagnosis #rhabdomyolysis
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Auto-amplification loop Diagnosis ... Infections+++: Virus (EBV ... biologics (CMV +++, EBV ... of emergency, ICU ... #management #treatment
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
antibody, Anti-GBM ... usually low in anti-GBM ... Other tests: • CT ... seen on chest CT ... #diagnosis #management
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Donath-Landsteiner Antibodies[PCH ... dehydrogenase • Positive ... - Mycoplasma, EBV ... younger pts) Differential ... Hemoglobinuria (PCH
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
• History of EBV ... - Lymphocyte rich ... Immunohistochemical studies (to differentiate ... physical exam, CT ... hematology #oncology #management
Idiopathic CD4 Lymphopenia (ICL) / Lymphocytopenia 

DIAGNOSTIC CRITERIA FOR ICL
 • Persistent CD4 T-cell lymphopenia
 •
CD4 Lymphopenia (ICL ... CRITERIA FOR ICL ... EBV. CMV. ... #Lymphopenia #ICL ... #Differential #
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
life-threatening Differential ... myasthenia Diagnosis ... : - Bedside: ice ... Imaging - CT Chest ... #management #neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
in HIV / AIDS - Differential ... enhancement on CT ... effect/Edema • EBV ... and <25% culture positive ... CNS #Infections #differential