20 results
Pyoderma Gangrenosum: Autoimmune disorder resulting in a vasculitis which causes slowly progressive 
ulceration of the skin.
Pyoderma Gangrenosum ... progressive ulceration ... #Dermatology #SkinRash ... #Pyoderma #Gangrenosum ... #UCSDH
Head and Neck Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic:
 • Squamous cell carcinoma
 • Basal cell
Skin Ulcers - Differential ... : • Pyoderma gangrenosum ... #Neck #Ulcers #ulcerative ... #skinrash #dermatology ... #Differential #
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
Legs / Feet - Differential ... Metabolic: • Pyoderma gangrenosum ... #Feet #Ulcers #ulcerative ... #skinrash #dermatology ... #Differential #
Ulcerative Blastomycosis Skin Lesion
57 asymptomatic M from Indiana nonpruritic, painless, progressive skin lesion lower back x
Ulcerative Blastomycosis ... sharp borders) & ulcerative ... heaped up borders); differential ... cell ca, pyoderma gangrenosum ... Blastomycosis #SkinRash
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
by Etiology - Differential ... : • Pyoderma gangrenosum ... Cryptococcosis #Ulcers #ulcerative ... #skinrash #dermatology ... #Differential #
Differential Diagnosis of Necrotizing Fasciitis: 

Cellulitis, 
Superficial abscess, 
Deep vein thrombosis 
(see phlegmasia cerulea dolerans), 
Compartment
Differential Diagnosis ... Compartment syndrome ... insufficiency, Pyoderma gangrenosum ... Necrotizing #Fasciitis #Differential
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
Skin Ulcers - Differential ... ) • Behcet's syndrome ... genitals #Ulcers #ulcerative ... #skinrash #dermatology ... #Differential #
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Sarcoidosis or Lofgren's syndrome ... Ulcerative Colitis ... Mnemonic #Causes #Differential ... #Dermatology #SkinRash
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
more): Genital ulceration ... thrombophlebitis, pyoderma gangrenosum ... lesions, pyoderma gangrenosum ... Behcet disease) Differential ... Crohn disease, ulcerative
Cutaneous manifestations associated with myelodysplastic syndrome
 • Myeloid hemopathy with the most frequent skin lesions (20%)
myelodysplastic syndrome ... dermatosis: Sweet's syndrome ... , Pyoderma gangrenosum ... myelodysplastic #syndrome ... #differential #