26 results
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
A subset of hemophagocytic ... disease • Periodic fever ... multiorgan failure • Fever ... - Nonremitting fever ... #Hematology #Rheumatology
Adult-Onset Still's Disease (AOSD)
Rare inflammatory disorder of unknown etiology, difficult to diagnose because of heterogenous presentation.
Adult-Onset Still's ... : High spiking fever ... Systemic AOSD: high fever ... #diagnosis #management ... #treatment
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
Hemophagocytic Lymphohistiocytosis ... Overwhelming clinical syndrome ... following: • Fever ... Lymphohistiocytosis #diagnosis #management ... #treatment #hematology
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Adult-Onset Still's ... Clinical triad: Fever ... #AdultOnset #Stills ... Disease #diagnosis #management ... #treatment #rheumatology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Hemophagocytic Lymphohistiocytosis ... • Clinical: fever ... +, Adult-onset Still ... Lymphohistiocytosis #diagnosis #management ... #rheumatology
Adult Onset Still's Disease
Systemic inflammation with urticarial rash.
Rash: 
 • Nonpruritic, evanescent (correlates with time of
correlates with time of fever ... Daily high spiking fever ... - Fever spikes ... Fever of at least ... #management
Leukostasis vs Tumor Lysis Syndrome
Leukostasis:
 • Pathophysiology: Large, immature blasts and high WBC count cause hyperviscosity
, dyspnea, +/- CXR ... - 80% have fever ... organ damage • Treatment ... TLS #diagnosis #management ... #hematology
Oroya Fever
Hematologic disease caused by Bartonella bacilliformis
Restricted to the Andes highlands of Peru & Ecuador
B. bacilliformis:
Oroya Fever Hematologic ... Inflammation: high fever ... TREATMENT: ​• Acute ... gabrieltalledop #Oroya #Fever ... #diagnosis #management
Hantavirus
Pathogen: Hantavirus - Rodents are the primary reservoir
Transmission:
 • Shed in the urine, feces, saliva of
Cardiopulmonary Syndrome ... • Prodrome: fever ... , chills, myalgias ... • Autopsy PCR Treatment ... Hantavirus #diagnosis #management
Visceral Leishmaniasis - Diagnosis and Management Summary
Species: Leishmania donovani, Leishmania infantum, Leishmania chagasi
Where: South Asia, East
Diagnosis and Management ... 2-6 months • Fever ... • Can cause Hemophagocytic ... Bilirubin, ↑BUN/Cr ... culture, PCR, K39) Treatment