11 results
SKIN RASHES 



Skin rashes can occur from a variety of factors, including infections, heat, allergens, immune
SKIN RASHES ... Skin rashes ... disorders and medications ... signs of illness ... petechiae; #purpura; #rash
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... mucositis - Rash ... arterial aneurysms can ... purpura: strong sign ... differential #diagnosis
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... - Collagen disorders ... cryoglobulins • Skin ... #Differential # ... #dermatology #physicalexam
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
Rare Disorder: ... sudden onset of a rash ... - Rash: multiple ... Episcleritis Signs ... Leukocytoclastic vasculitis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Differential Diagnosis ... purpura: Strong sign ... , mucositis • Rash ... arterial aneurysms can
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... 3rd Decade Skin ... permanent alopecia Differential ... Seizures • Strokes Skin ... +) anti-Ro/SSA can
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
• Can be induced ... (cutaneous or systemic ... of necrotizing vasculitis ... • Can be associated ... comparison #table #differential
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
Behçet's Syndrome Systemic ... , small-vessel vasculitis ... prick test that can ... Behcet disease) Differential ... diagnosis #management #signs
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
inflammatory vasculitis ... sx + signs/sx of ... very remarkable w/differential ... GCA can present ... required due to skip
PALM RASHES 
Common features and patterns:
1.	Color:
o	Red or erythematous: Common in inflammatory or allergic reactions.
o	Purple or purpuric:
inflammation (vasculitis ... depigmentation disorders ... occur in chronic skin ... disease, or bullous skin ... accompanied by systemic