11 results
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Identification of causes ... (5%): PAN > GPA ... #dermpath #dermatology ... #semiology #signs ... #lesions #diagnosis
Anterior ischemic optic neuropathy (AION) - Recognition of giant cell arteritis (GCA)

1) Is visual loss caused
Is visual loss caused ... the optic nerve caused ... Doppler US : halo sign ... Ophthalmology #Diagnosis ... #Algorithm
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... ischemic skin lesions ... tract, and often causes ... Ocular inflammatory lesions-interstitial ... purpura: strong sign
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
systemic inflammatory vasculitis ... systemic sx + signs ... = vasculitis vs ... required due to skip lesions ... #Temporal #Signs
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... - Differential Diagnosis ... Algorithm Pinpoint ... #Algorithm #Causes ... #dermatology #physicalexam
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
- Differential Diagnosis ... Algorithm Erythrematous ... Auspitz sign, Koebner's ... Papulosquamous #SkinRash #dermatology ... #Algorithm #causes
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... purpura: Strong sign ... Elevated ESR and CRP GCA ... develop in pts with GCA ... tract, and often causes
ANTI-MDA5 DERMATOMYOSITIS

Cutaneous manifestations:
• Periorbital heliotrope (blue-purple) rash with edema
• Erythematous rash on the face, or the
chest (in a V-sign ... Auricular skin lesions ... anti-NXP2 Abs Lung ... #rheumatology #dermatology ... #diagnosis
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
Episcleritis Signs ... Causes: - Idiopathic ... lymphoma, breast CA ... Leukocytoclastic vasculitis ... #dermatology #oncology
Anti-NXP-2 Dermatomyositis

What?
DM with generalized subcutaneous edema
Pts have more myalgias, more severe weakness, and an increased prevalence
chest (in a V-sign ... shoulders (in a shawl sign ... Auricular skin lesions ... Muscle atrophy may cause ... #rheumatology #dermatology