19 results
Hemophagocytic Lymphohistiocytosis (HLH)

High mortality without prompt recognition and management. HLH is a critical diagnostic consideration in
recognition and management ... Presentation • Common Signs ... and Symptoms: ... Pathophysiology ... #Hematology #HemeOnc
Giant Cell (Temporal) Arteritis: Pathogenesis and investigations
Risk Factors:
 - Unclear environmental triggers (may be viral, not
Giant Cell (Temporal ... environmental triggers ... HLA-DR4 mutation ... yrs old; F>M Signs ... Temporal #Arteritis #Pathophysiology
Hemophagocytic Lymphohistiocytosis (HLH) Treatment
Primary HLH:
 - HLH-94 Protocol
    • Dexamethasone
) Treatment Primary ... varies depending on trigger ... autoimmune disease, treatment ... #Treatment #management ... #hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
signs and symptoms ... Low or absent NK cell ... • Bicytopenia Treatment ... Lymphohistiocytosis #diagnosis #management ... #treatment #hematology
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... WBC >100k, + lab signs ... into serum • Triggers ... TLS #diagnosis #management ... #hematology
Chronic Lymphocytic Leukemia - Summary

Cancer affecting lymphocytes/Mature B cell neoplasm
 • Lymphocytes accumulate in large numbers
with no early symptoms ... Physical Exam/Signs ... microglobulin Treatment ... diagnosis #workup #oncology ... #hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
) Pathophysiology ... Unknown cause Treatment ... Lymphohistiocytosis #diagnosis #management ... #treatment #summary ... #rheumatology
Post-Transplantation Lymphoproliferative Disorders (PTLD)
Definition: Lymphoid and/or plasmacytic proliferations that occur as a result of immunosuppression in
Conditioning regimen Signs ... , unexplained hematologic ... EBV viral load, signs ... Lymphoproliferative #Disorders #oncology ... #diagnosis #management
Chronic Lymphocytic Leukemia (CLL) - Summary
Overview: 
 • Most common leukemia in adults
 • Disorder of
Lymphocytic Leukemia (CLL ... uw_IMresidency #CLL ... Lymphocytic #Leukemia #oncology ... #hematology #hemeonc ... #diagnosis #management
Aplastic Anemia - Illness Script
Signs and symptoms:
 • Recurrent infections from neutropenia
 • Mucosal bleeding from
Illness Script Signs ... and symptoms: ... Consider stem cell ... Anemia #diagnosis #management ... #treatment #hematology