11 results
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
parallel to lines of skin ... palms/soles - Differential ... nummular eczema, tinea ... #clinical #dermatology ... #photo #PhysicalExam
Henoch Schonlein Leg Rash - Palpable Purpura
Purpura: Low Platelets or Vasculitis?
45 years old, seen in our
Leg Rash - Palpable ... Tip: To differentiate ... later confirmed by skin ... #Rash #clinical ... #photo #dermatology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin ... Rash - Differential ... phenomenon • Pityriasis ... Herald's atch • Tinea ... soles • Discoid Lupus
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... Pinpoint areas (less ... infection - RMSF - Henoch ... Autoimmune Vasculitis (lupus ... cryoglobulins • Skin
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... covering the foot, hence ... skin of inflamed ... Variety #type #clinical ... #photo #foot #dermatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
) Suspect: Clinical ... 3rd Decade Skin ... permanent alopecia Differential ... Non-autoimmune rheumatologic ... Seizures • Strokes Skin
Lymphocutaneous Sporotrichiosis Infection

Landscaper w/ painless nodular rash of arm present for months wax and wane; diagnosis?
Lymphocutaneous
painless nodular rash ... trauma leads to skin ... biopsy preferred Differential ... Sporotrichiosis #Infection #clinical ... #photo #hand
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Rarely dominate the clinical ... Maculopapular rash ... reticularis Differential ... polyangiitis • EGPA • Henoch-Schönlein ... #diagnosis #rheumatology
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Ankles, lower legs ... • Pityriasis ... with site, (e.g„ tinea ... #dermatology #rash ... #differential #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... often present • Henoch ... mucositis - Rash ... such as systemic lupus ... #diagnosis #rheumatology