18 results
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
parallel to lines of skin ... palms/soles - Differential ... diagnosis: secondary ... nummular eczema, tinea ... #dermatology #photo
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 ... sulfa-drug - Skin ... #Dermatology #Rash ... Targetoid #Algorithm #Differential
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 ... #rashes #differential ... #diagnosis #rheumatology
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 #
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
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Clinical triad: Fever ... Arthralgia/arthritis, Skin ... rash ± odynophagia ... fraction < 20% Differential ... management #treatment #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. ... Resolution > 15 days Differentials ... withdrawal • Mild
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
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Heat Stroke - Differential ... Diagnosis Framework ... fatigue Heat Rash ... blisters on the skin ... Collapse: • Pathophysiology