17 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... Giardiasis #Erythema ... Nodosum #Mnemonic #Causes ... #Dermatology #SkinRash
Erythema Annulare Centrifugum (EAC),
This is erythema annulare centrifugum (EAC), one of the “figurate erythemas.” These lesions
Erythema Annulare ... EAC), This is erythema ... Commonly mistaken for tinea ... Most cases are idiopathic ... #dermatology #skinrash
Tinea Versicolor: Scaly well demarcated patches caused by fungal skin infection.

Charlie Goldberg, M.D. - UCSD Catalog
Tinea Versicolor ... demarcated patches caused ... #Dermatology #SkinRash ... #Tinea #Versicolor
Tinea Pedis: Scaly red erruption of the feet caused by fungal dermatitis.

Charlie Goldberg, M.D. - UCSD
Tinea Pedis: Scaly ... erruption of the feet caused ... #Dermatology #SkinRash ... #Tinea #Pedis #
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
Tinea Versicolor ... dermatophyte infection Caused ... recalcitrant) #Tinea ... #Dermatology #SkinRash
Erythema Nodosum - Causes and Differential Diagnosis 
Appearance:  erythematous painful lumps usually 1-6 cm in
Erythema Nodosum ... - Causes and Differential ... healing process) #Erythema ... #Nodosum #Causes ... #Dermatology #SkinRash
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
lasts <24hrs • Erythema ... nodules on shins • Erythema ... #Reactive #SkinRash ... Diagnosis #Algorithm #causes
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
Erythema Nodosum ... : In this case, ... #Dermatology #SkinRash ... #Erythema #ENodosum
Moccasin-variety Tinea Pedis 
70 M chronic scaly feet. Over the years: rash has itched only occasionally;
Moccasin-variety Tinea ... dermatophytes cause ... Moccasin type tinea ... hyperkeratotic w/ erythema ... demarcation line of erythema
Physiologic Skin Changes in Pregnancy - Differential Diagnosis Algorithm

Face
 • Melasma
Abdomen
 • Linea Nigra 
Hormone induced
Melasma Abdomen • Linea ... Skin • Palmar erythema ... Diagnosis #Algorithm #causes