213 results
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Lymphohistiocytosis (HLH ... Overwhelming clinical syndrome ... cell activity • Ferritin ... • Bicytopenia Treatment ... diagnosis #management #treatment
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation Syndrome ... lymphohistiocytosis (HLH ... • HLH Labs: ... dehydrogenase • ↑ Ferritin ... Treatment: • Corticosteroids
Hemophagocytic Lymphohistiocytosis (HLH)
Clinical Features: Fever, Splenomegaly, Hepatomegaly, Lymphadenopathy, Confusion
Classic lab findings in HLH: ↑↑ ferritin, Anemia,
Lymphohistiocytosis (HLH ... lab findings in HLH ... : ↑↑ ferritin, Anemia ... consistent with HLH ... cell lines) • ↑ ferritin
Diagnostic Schema for Hyperferritinemia

Pearl: Diseases associated with extreme elevations: 
1. HLH 
2. Still's disease 
3. Systemic
HLH 2. ... histoplasmosis #Ferritin
Causes of Hyperferritinemia - Differential Diagnosis
Ferritin > 1000
Ferritin is the storage form of iron. Increased hepcidin
Differential Diagnosis Ferritin ... > 1000 Ferritin ... hepcidin prevents ferritin ... HLH or Adult Onset ... In adults, HLH is
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH ... dysfunction, ↑ Ferritin ... • Familial HLH ... Unknown cause Treatment ... diagnosis #management #treatment
Proposed Treatment Algorithm for MAS / HLH

#MAS #HLH #Hemophagocytic #Lymphohistiocytosis #Management #Treatment #Algorithm #Hematology
Proposed Treatment ... Algorithm for MAS / HLH ... #MAS #HLH #Hemophagocytic ... Lymphohistiocytosis #Management #Treatment
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
and Screen for HLH ... HLH syndrome 5. ... marrow failure syndrome
Hypoplastic Left Heart Syndrome (HLHS)
 • Introduction
 • Embryology
 • Anatomy
 • Physiology of HLHS
 •
Hypoplastic Left Heart Syndrome ... (HLHS) • Introduction ... Physiology of HLHS ... Hypoplastic #LeftHeart #Syndrome ... #HLHS #cardiology
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
and Screen for HLH ... HLH syndrome 5 ... marrow failure syndrome