12 results
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... Maculopapular rash ... Bullae/Blisters • Ulceration ... reticularis Differential ... #rash #diagnosis
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... reddish-purple lesions ... cryoglobulins • Skin ... #Differential # ... Algorithm #Causes #dermatology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
more): Genital ulceration ... vasculitis) • Cutaneous ... injury) • Neurologic ... Behcet disease) Differential ... Crohn disease, ulcerative
Pigmented Purpuric Dermatoses (PPD) - Capillaritis

Group of chronic, benign, cutaneous eruptions characterized by the presence of
chronic, benign, cutaneous ... Chronic, benign, cutaneous ... brown tint of the rash ... Dermatoses #Dermatosis #differential ... #diagnosis #dermatology
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
Pustular Skin Lesions ... Burrows between fingers ... Generalized itchy rash ... #Lesions #Differential ... #Diagnosis #Dermatology
Monkeypox

What?
Monkeypox virus belongs to the family Poxviridae, subfamily Chordopoxvirinae, and genus orthopoxvirus
Viral zoonotic disease that is
Characteristic Rash ... activity • Via cutaneous ... Umbilification - Rash ... epiglottitis, or ulcerative ... Diagnosis #Management #Dermatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... , neurologic, and ... , mucositis • Rash ... cognitive impairment, neurologic
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
soles, sides of fingers ... pruritus (e.g., fingers ... often showing ulceration ... ; pruritis #dermatology ... #rash #differential
Nodular Skin Lesions in the Returning Traveler
Furuncular Myiasis:
 • Pathogens: Dermatobia hominis, Cordylobia spp, Cuterebra spp
Nodular Skin Lesions ... Cutaneous Leishmaniasis ... Features: Typically ulcerative ... #Traveler #dermatology ... #infections #differential
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... causes: infections (cutaneous ... classic targetoid lesions ... comparison #table #differential ... #diagnosis #dermatology