10 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Lofgren's syndrome Ulcerative ... Mnemonic #Causes #Differential ... #Diagnosis #Dermatology ... #SkinRash
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
Skin Ulcers - Differential ... Painful: • Herpes ... genitals #Ulcers #ulcerative ... #skinrash #dermatology ... #Differential #
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
• Bleomycin Hematologic ... Cryoglobulinemia Infectious ... Leishmaniasis - Viral - Herpes ... Cryptococcosis #Ulcers #ulcerative ... #skinrash #dermatology
Oral Skin Ulcers - Differential Diagnosis Algorithm
Single Ulcer:
 • Traumatic ulcer
 • Angular ulcer
 • Aphthous
stomatitis • Erythema ... Acute necrotizing ulcerative ... simplex infection ... #Oral #mouth #SkinRash ... #dermatology #Differential
Erythema Nodosum - Causes and Differential Diagnosis 
Appearance:  erythematous painful lumps usually 1-6 cm in
Erythema Nodosum ... - Causes and Differential ... thighs RARELY ulcerate ... Diagnosis #Dermatology ... #SkinRash #Clinical
Ulcerative Blastomycosis Skin Lesion
57 asymptomatic M from Indiana nonpruritic, painless, progressive skin lesion lower back x
(heaped up borders ... ); differential: ... Indiana University Infectious ... Blastomycosis #SkinRash ... #dermatology #clinical
Causes of Erythema Nodosum
Common
 - Idiopathic (up to 55 percent)
 - Infections: streptococcal pharyngitis (28 to
Causes of Erythema ... 55 percent) - Infections ... regional enteritis, ulcerative ... - Viral: herpes ... Nodosum #Causes #Differential
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Involving the Skin - Differential ... related vasculitis, infections ... racemosa, Digital ulceration ... vasculitis • Erythema ... differential #diagnosis
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
foliaceus - Infectious ... chickenpox) • Herpes ... shingles) • Herpes ... Vesiculobullous #SkinRash ... #dermatology #Differential
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
often showing ulceration ... honey-colored crusts • Herpes ... crusted erosions • Herpes ... ; pruritis #dermatology ... #rash #differential