13 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Giardiasis #Erythema ... #Differential # ... Diagnosis #Dermatology ... #SkinRash
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
Erythema Nodosum ... : In this case, ... Photo credit, Josh ... Images #Clinical #Dermatology ... #SkinRash #Erythema
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 ... lasts <24hrs • Erythema ... #Reactive #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Erythema Annulare ... EAC), This is erythema ... Most cases are idiopathic ... EAC #clinical #photo ... #dermatology #skinrash
Holster Sign in Dermatomyositis

Interestingly, poikiloderma and violaceous erythema can occur in sun protected areas as well
and violaceous erythema ... #Sign #Thighs #SkinRash ... #Dermatomyositis ... #Dermatology #Clinical ... #Photo
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
potential inciting causes ... Haverhill fever caused ... #comparison #table ... #differential # ... diagnosis #dermatology
Mechanic’s Hands in Dermatomyositis

Finally, mechanic’s hands which are common to Anti-synthetase syndrome and another type of
typically present with erythema ... Mechanics #Hands #SkinRash ... #Dermatomyositis ... #Dermatology #Clinical ... #Photo
Psoriasiform Scalp Findings in Dermatomyositis

Scalp: DM patients can present with a psoriasiform scalp eruption characterized redness,
presenting sign in some cases ... #Scalp #sign #SkinRash ... #Dermatomyositis ... #Dermatology #Clinical ... #Photo
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin Rash - Differential ... Well-demarcated erythema ... #Eczematous #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes