11 results
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
Erythema Nodosum ... Nodosum has occured ... Images #Clinical #Dermatology ... #SkinRash #Erythema ... #ENodosum #Photo
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Nodosum - Mnemonic ... #Nodosum #Mnemonic ... #Causes #Differential ... #SkinRash
Erythema Nodosum - Causes and Differential Diagnosis 
Appearance:  erythematous painful lumps usually 1-6 cm in
Erythema Nodosum ... - Causes and Differential ... #Nodosum #Causes ... #Differential Diagnosis ... #Dermatology #SkinRash
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash ... - Differential ... Nodosum - Tender ... #Reactive #SkinRash ... #dermatology #Differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Dermatomyositis Erythema ... Lyme disease Erythema ... nodosum • Sarcoidosis ... #rashes #differential ... #diagnosis #rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential ... vasculitis • Erythema ... polyarteritis nodosa ... #dermatology #rheumatology ... #differential #
Causes of Pseudocellulitis - Differential Diagnosis Framework for Cellulitis Mimics

Cellulitis: Deep skin and subcutaneous fat infection

Pseudo
Pseudocellulitis - Differential ... Cellulitis: Deep skin ... nodosum • Pyoderma ... Polyarthritis nodosum ... #skin
Behcet's Syndrome - Diagnosis
Diagnostic Criteria for Behget's Syndrome (International Study Group for Behget's Disease):
 • Recurrent,
vasculitis - Skin ... Wide variety of skin ... pseudofolliculitis, erythema ... nodosum) • Ocular ... Diagnosis #criteria #rheumatology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... • A chronic skin ... nodosum • Tender ... comparison #table #differential ... #diagnosis #dermatology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
acneiform lesions, erythema ... nodosum (septal ... like lesions, erythema ... Behcet disease) Differential ... signs #symptoms #rheumatology