15 results
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
(blue-purple) rash ... • Erythematous rash ... dorsal part of the MCP ... #rheumatology # ... dermatology #diagnosis
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Lymphohistiocytosis (HLH) Pathophysiology ... →Activation of CD8 ... IFN-y) → Excessive activation ... Lymphohistiocytosis #diagnosis #management ... treatment #summary #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Still disease, dermatomyositis ... Malignancy (e.g. hematologic ... lymphopenia, low PLT • Anemia ... La, anti-Jo-1, SCL ... Chronic B-cell activation
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... Petechial or purpuric rash ... with leukopenia, anemia ... Syndrome #Diagnosis #Management ... #Hematology #Rheumatology
Gottron's Papules in Dermatomyositis

Another classic clue is Gottron's papules which are small grouped flat topped papules
Gottron's Papules in Dermatomyositis ... surfaces of joints (MCP ... Gottrons #Papules #Rash ... #Dermatomyositis ... #Dermatology #Clinical
Oroya Fever
Hematologic disease caused by Bartonella bacilliformis
Restricted to the Andes highlands of Peru & Ecuador
B. bacilliformis:
Oroya Fever Hematologic ... severe hemolytic anemia ... coinfection, toxo reactivation ... Fever #diagnosis #management
Heparin Induced Thrombocytopenia (HIT) - Diagnosis and Management - GrepMed Handbook

Presentation: 
 • Plts ↓50% (nadir
Diagnosis and Management ... ♀, ↑Age, ESRD Pathophysiology ... complex → plt activation ... Management: • ... #Treatment #Hematology
Hemophagocytic Lymphohistiocytosis (HLH)
Definition: Overwhelming clinical syndrome associated with excessive macrophage activation and cytokine storm due to
excessive macrophage activation ... Ferritin >500 ng/mL ... Lymphohistiocytosis #diagnosis #management ... #treatment #hematology
Adult Onset Still's Disease
Systemic inflammation with urticarial rash.
Rash: 
 • Nonpruritic, evanescent (correlates with time of
with urticarial rash ... Rash: • Nonpruritic ... Ferritin >3000 ng/mL ... AOSD #diagnosis #rheumatology ... #management
Anti-NXP-2 Dermatomyositis

What?
DM with generalized subcutaneous edema
Pts have more myalgias, more severe weakness, and an increased prevalence
(blue-purple) rash ... • Erythematous rash ... dorsal part of the MCP ... #diagnosis #management ... dermatology