15 results
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Activation of CD8 ... Phagocytosis of blood ... accumulation of clinical ... Drugs, Unknown cause ... #management #treatment
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
auricular papules Clinical ... onset [33-74%] • Blood ... disease and ILD • Liver ... Liver biopsies show ... #dermatology #diagnosis
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
of high parity blood ... sequestration and activation ... without other cause ... Transfusion #Reactions #hematology ... #diagnosis #comparison
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
: Overwhelming clinical ... excessive macrophage activation ... lymph node, or liver ... #management #treatment ... #hematology
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
ABO incompatible blood ... organ damage Clinical ... DIC • Severe Liver ... #Coagulation #diagnosis ... #management #hematology
Hepatopulmonary Syndrome - Diagnosis and Management Summary
A defect in arterial oxygenation due to a gas exchange
and Management ... lung disease Caused ... shunt (Type 2) Clinical ... passage • Arterial blood ... #hepatology
Aplastic Anemia - Overview

Who?
• M = F
• 3 peaks:	1) Childhood	2) 15-25 years	3) >60 years

What?
• Aplastic anemia
Aplastic Anemia Clinical ... and petechiae Causes ... result from low blood ... #hematology #diagnosis ... #management
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
to 8 years Clinical ... disease • Liver ... DDX - Other causes ... hypogammaglobulinemia #immunology #hematology ... #diagnosis #management
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... Fever is the main clinical ... thrombocytopenia • Liver ... #Syndrome #Diagnosis ... #Management #Hematology
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
Causes purpura & ... TRALI): Leading cause ... eruptions, diarrhea, liver ... #Transfusion #diagnosis ... #management #hematology