14 results
Adult Onset Still's Disease - Yamaguchi Criteria
Major criteria:
 - Fever >= 39C lasting >= 1 weeks
: - Fever >= 39C ... weeks - Typical skin ... rash: maculopapular ... #Diagnosis #Major ... #Minor #Rheumatology
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Maculopapular - Diagnostic ... instability - New-onset fever ... with rash - Mucocutaneous ... sulfa-drug - Skin ... #Dermatology #Rash
Adult Onset Still's Disease
Systemic inflammation with urticarial rash.
Rash: 
 • Nonpruritic, evanescent (correlates with time of
with urticarial rash ... Rash: • Nonpruritic ... - Yamaguchi criteria ... maculopapular skin ... #rheumatology #
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Joint Pain Rash ... • Rheumatic fever ... gangrenosum • IBD ... #differential #diagnosis ... #rheumatology
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
blood donor • Pathophysiology ... sequestration and activation ... explain symptoms • Fever ... pulmonary edema) • Fever ... #diagnosis #comparison
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 ... Histopathologic criteria ... #Syndrome #Diagnosis ... #Rheumatology
Kawasaki Disease: Clinical Findings
Diagnostic Criteria - Fever and 4/5 of the following:
 • Conjunctivitis
 • Polymorphous
Clinical Findings Diagnostic ... Criteria - Fever ... • Polymorphous rash ... - Generalized Skin ... #Diagnosis #Pathophysiology
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
(blue-purple) rash ... • Erythematous rash ... Dermatomyositis • Fever ... Dermatomyositis #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 ... • Clinical: fever ... treatment #summary #rheumatology
Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)
Definition: 
 • Severe adverse drug reaction, characterized by
rash in association ... Criteria for Diagnosis ... Fever >38.5 2. ... Skin involvement ... withdrawal • Mild