10 results
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
Christmas tree pattern ... parallel to lines of skin ... - Differential diagnosis ... nummular eczema, tinea ... #dermatology #photo
Antinuclear Antibody Testing - Nuclear and Cytoplasmic Patterns
Nuclear Patterns:
 • Homogeneous pattern: 
   -
Scl70 (in some cases ... Scl-70 (in some cases ... conditions - Sp ... #differential #diagnosis ... #rheumatology
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... Diagnosis? ... dermatophytes cause ... skin of inflamed ... type #clinical #photo
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... Christmas tree pattern ... Herald's atch • Tinea ... #Algorithm #causes
Antinuclear Antibody Testing - Nuclear Patterns
Homogeneous pattern: 
 • SLE, SSc, AIH, JIA
 • dsDNA, chromatin,
Scl70 (in some cases ... : • SSc, PBC/SSc ... conditions • Sp ... #differential #diagnosis ... #rheumatology
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Maculopapular rash ... with a certain pattern ... #dermatology #rash ... #diagnosis #rheumatology
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
honey-colored crusts ... Christmas tree pattern ... with site, (e.g„ tinea ... #dermatology #rash ... #differential #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... mucositis - Rash ... - (C-ANCA) pattern ... - (P-ANCA) pattern ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... of shoulder and hip ... , mucositis • Rash ... tract, and often causes ... #Rheumatology
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
RP-ILD), dermato-rheumatologic ... ) • Anti-Mi2 (skin ... Symptoms: • Gottron rash ... slow onset and pattern ... statins - probably caused