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

What?
A subset of
disease • Periodic fever ... multiorgan failure • Fever ... - Nonremitting fever ... thrombocytopenia • Liver ... ALT ↑ bilirubin level
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
: Overwhelming clinical ... excessive macrophage activation ... signs and symptoms ... following: • Fever ... lymph node, or liver
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Activation of CD8 ... : fever +++, hepatosplenomegaly ... , ↓ Fibrinogen level ... Lymphohistiocytosis #diagnosis #management ... treatment #summary #rheumatology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
auricular papules Clinical ... Dermatomyositis • Fever ... disease and ILD • Liver ... Liver biopsies show ... Dermatomyositis #rheumatology
Blood Transfusion Reactions

Immune Mediated:
 • Febrile Non-Hemolytic Transfusion Reaction (FNHTR): Most common immune reaction to transfusion.
S/sx: Fever, flank ... have drop in Hct, fever ... maculopapular rash ... Sx include: fever ... eruptions, diarrhea, liver
Blood Product Transfusions One Pager Summary
Type and screen - determines blood type and detects in recipient
S/sx: Fever, flank ... have drop in Hct, fever ... maculopapular rash ... Sx include: fever ... eruptions, diarrhea, liver