21 results
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
) Pathophysiology ... Purtilo (XLP) Acquired ... Unknown cause Treatment ... #management #treatment ... #summary #rheumatology
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
: HLH signs and ... Diagnosis via genetic ... • Bicytopenia Treatment ... #management #treatment ... #hematology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
the secondary or acquired ... Treatment: • Corticosteroids ... Activation #Syndrome #Diagnosis ... #Management #Hematology ... #Rheumatology
Polycythemia Vera (PV) - Diagnosis and Management Summary
Diagnostic Criteria:
 • Elevated hemoglobin and/or hematocrit AND
 •
and Management ... present, symptoms, signs ... with evidence of acquired ... #Management #Summary ... #treatment #hematology
Hemophagocytic Lymphohistiocytosis (HLH)

High mortality without prompt recognition and management. HLH is a critical diagnostic consideration in
recognition and management ... • Secondary (Acquired ... Presentation • Common Signs ... Pathophysiology ... #Management #Hematology
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
: 33% • Treatment ... , and CXR with pulmonary ... : No • Treatment ... #diagnosis #comparison ... #table
Differentiation Syndrome in APML
Epidemiology:
 • Incidence: common in APL (2-48% depending on the study)
 • Triggers:
Triggers: ATRA treatment ... Pathophysiology ... Imaging: CXR- pulmonary ... fluid overload, PCC ... #management #hematology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
and Management ... Lung Abscess Pathophysiology ... Clindamycin in case of PCN ... Lung #Abscess #pulmonary ... #treatment #diagnosis
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
Leukostasis: • Pathophysiology ... WBC >100k, + lab signs ... Lysis Syndrome: • Pathophysiology ... Syndrome #TLS #diagnosis ... #management #hematology
C.diff - Clostridioides Difficile Infection (CDI) - Diagnosis and Management - GrepMed Handbook

Clinical Presentation + Progression:
and Management ... Perforation) Pathophysiology ... can be community-acquired ... non-toxigenic • Stool PCR ... #management #treatment