8 results
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
fires, heating pads ... Haverhill fever caused ... Rash is usually ... of necrotizing vasculitis ... comparison #table #differential
Fever and Rash - Differential Diagnosis Framework
 • Viral: Measles, Infectious Mono (EBV, CMV), Acute HIV,
Fever and Rash - ... Differential Diagnosis ... Infectious Mono (EBV ... Noninfectious: SJS/TEN, Erythema ... Sweet syndrome, Vasculitis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... tract, and often causes ... glomerulonephritis) • Anti-GBM ... mucositis - Rash ... differential #diagnosis
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Over the years: rash ... dermatophytes cause ... hyperkeratotic w/ erythema ... demarcation line of erythema ... type #clinical #photo
Genital Ulcers - Atypical causes of genital ulcers that can be difficult to diagnose & manage.
Ulcers - Atypical causes ... papules, blotch erythema ... +/- psoriatic rash ... juvenile gangrenous vasculitis ... #differential #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Differential Diagnosis ... , mucositis • Rash ... tract, and often causes ... pain and GN Anti-GBM
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
virus • CMV • EBV ... Maculopapular rash ... 10 weeks after erythema ... - History of erythema ... • Uveitis • Rash
Mycoplasma pneumoniae–Associated Mucositis- ...severe mucositis developed that involved the lips, buccal mucosa (Panel A), conjunctivae, and
In this case, the ... pneumoniae–induced erythema ... mycoplasma-induced rash ... #clinical #photo ... #NEJM #mycoplasma