37 results
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Hemophagocytic Lymphohistiocytosis ... HLH signs and symptoms ... Hemophagocytosis in bone ... • Bicytopenia Treatment ... #hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Hemophagocytic Lymphohistiocytosis ... (HLH) Pathophysiology ... , Biological + Bone ... /ml, ↑ LDH • Bone ... Unknown cause Treatment
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
haemophagocytic lymphohistiocytosis ... hemophagocytic lymphohistiocytosis ... is found in the bone ... Treatment: • Corticosteroids ... Diagnosis #Management #Hematology
Low Alkaline Phosphatase - Hypophosphatasia 

Is Low Alkaline Phosphatase Of Clinical Importance?

ALP enzyme- Discovered in 1923
Low
• softening of bones ... collection with EDTA Pathophysiology ... mineralization Symptoms ... respiratory failure • Neurologic ... Hyophosphatasia #hepatology
Aplastic Anemia - Illness Script
Signs and symptoms:
 • Recurrent infections from neutropenia
 • Mucosal bleeding from
Script Signs and symptoms ... with hypocellular bone ... megaloblastic anemia Treatment ... diagnosis #management #treatment ... #hematology
Polycythemia Vera (PV) - Diagnosis and Management Summary
Diagnostic Criteria:
 • Elevated hemoglobin and/or hematocrit AND
 •
Hypercellular bone ... When present, symptoms ... • "Vasomotor" symptoms ... the reduction of symptoms ... #hematology
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... Dehydration • Symptoms ... changes, stroke symptoms ... Lysis Syndrome: • Pathophysiology ... diagnosis #management #hematology
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
blood donor • Pathophysiology ... ARDS to explain symptoms ... : 33% • Treatment ... : No • Treatment ... Transfusion #Reactions #hematology
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
pattern of spread, B symptoms ... Responsive to Treatment ... growth, response to treatment ... Classification #pathophysiology ... #Hematology #Diagnosis
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
pylori test (GI symptoms ... (CVID, WAS), (neurologic ... candidate) - Bone ... or if a primary hematologic ... Causes #Workup #hematology