80 results
Pyoderma Gangrenosum: Autoimmune disorder resulting in a vasculitis which causes slowly progressive 
ulceration of the skin.
resulting in a vasculitis ... which causes slowly ... Images #Clinical ... #Photo #Dermatology ... #SkinRash #Pyoderma
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
- Differential Diagnosis ... #Vascular #Vasculitis ... #SkinRash #dermatology ... #Differential #Diagnosis ... #Algorithm #causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- Differential Diagnosis ... - Bone marrow disease ... #Differential #Diagnosis ... #hematology #rheumatology ... #nonpalpable #dermatology
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
- Differential Diagnosis ... insufficiency • Vasculitis ... Ulcers #ulcerative #skinrash ... #dermatology #Differential ... #causes
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
insufficiency • Vasculitis ... • Bleomycin Hematologic ... Ulcers #ulcerative #skinrash ... #dermatology #Differential ... #causes
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
dermatophyte infection Caused ... lipid-dependent yeasts Clinical ... Tinea #Versicolor #Dermatology ... #SkinRash #Diagnosis ... #Management
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Identification of causes ... Connective tissue disease ... #dermpath #dermatology ... signs #lesions #diagnosis ... #clinical #manifestations
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... Rarely dominate the clinical ... Differential Diagnosis ... Polyangiitis #GPA #dermatology ... #rash #diagnosis
Benign Familial Pemphigus (Hailey-Hailey Disease): Idiopathic recurrent erruptions, in this
case affecting this axilla.

Charlie Goldberg, M.D. -
(Hailey-Hailey Disease ... erruptions, in this case ... UCSD Catalog of Clinical ... Images #Clinical ... #Dermatology #SkinRash
Hand, Foot, and Mouth Disease: A febrile illness (caused by Coxsackie Virus) associated vesicle formation on
Foot, and Mouth Disease ... febrile illness (caused ... Images #Clinical ... #Dermatology #Pediatrics ... #SkinRash #HFMD