61 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 ... Viral: HSV, EBV, HIV ... Differential #Diagnosis #Dermatology ... #SkinRash
Kaposis Sarcoma: Darkly pigmented macules caused by this malignancy. Seen most commonly in
patients with HIV infection.

Charlie
pigmented macules caused ... patients with HIV ... infection. ... Clinical #Photo #Dermatology ... #SkinRash #Kaposis
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint ... rash) • Primary HIV ... #JointPain #MSK ... Diagnosis #Algorithm #Orthopedics ... #Causes
Molluscum: Numerous papules caused by viral infection.

Charlie Goldberg, M.D. - UCSD Catalog of Clinical Images

#Clinical #Photo
Numerous papules caused ... by viral infection ... Clinical #Photo #Dermatology ... #SkinRash #Molluscum
Tinea Versicolor: Scaly well demarcated patches caused by fungal skin infection.

Charlie Goldberg, M.D. - UCSD Catalog
demarcated patches caused ... by fungal skin infection ... Clinical #Photo #Dermatology ... #SkinRash #Tinea
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
function of the DIP ... Finger deformity caused ... Discharge with orthpedic ... Management #Hand #Orthopedics ... #MSK
Erythema Nodosum: In this case, E. Nodosum has occured secondary to 
Streptococcal infection.
Photo credit, Josh Fierer,
Nodosum: In this case ... Streptococcal infection ... Images #Clinical #Dermatology ... #SkinRash #Erythema
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
a dermatophyte infection ... Caused by saprophytic ... Tinea #Versicolor #Dermatology ... #SkinRash #Diagnosis
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
blisters, possibly crusts ... foliaceus - Infectious ... Vesiculobullous #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
borders of lips Infectious ... thick honey-yellow crusts ... #Pustular #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes