40 results
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin Rash - Differential ... genitals (especially penis ... tree pattern on trunk ... Papulosquamous #SkinRash ... #dermatology #Differential
Trunk / Sacral Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic
 • Squamous cell carcinoma
 • Basal cell
Trunk / Sacral Skin ... Ulcers - Differential ... Radiation #Trunk ... #Sacral #SkinRash ... #dermatology #Differential
Tinea Pedis: Scaly red erruption of the feet caused by fungal dermatitis.

Charlie Goldberg, M.D. - UCSD
Tinea Pedis: Scaly ... #Dermatology #SkinRash ... #Tinea #Pedis #
Erythema Multiforme: skin eruption secondary to allergic reaction from an antibiotic.

Charlie Goldberg, M.D. - UCSD Catalog
#Dermatology #SkinRash ... Erythema #Multiforme #Trunk
Characteristic features of the rash are:

-Rough texture (like sandpaper)
-Worse in the skin folds e.g. groin, axilla,
Peds #Pediatrics #SkinRash ... #ScarletFever #Trunk
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pustular Skin Rash - Differential ... scars on face & trunk ... #Pustular #SkinRash ... #dermatology #Differential
Generalized Hyperpigmentation Differentials
Use the Mnemonic "no skin SPARED"

Images from dermnet.nz and merckmanuals

Mnemonic from https://www.medscape.com/slideshow/dermatology-mnemonics-6011359#5 #diagnosis #differential
Hyperpigmentation Differentials ... #5 #diagnosis #differential ... dermatology #skin #skinrash
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
• Involves trunk ... #Dermatology #SkinRash
Quick review on streptococcal skin infections. 

Images from dermnet.nz

#diagnosis #clinical #differential #dermatology #skinrash #skin
diagnosis #clinical #differential ... #dermatology #skinrash
Reactive Arthritis
 • Inflammation of joints (commonly large joints)
    - Asymmetric Oligoarthritis: Joint
lower limbs & trunk ... pustules of the glans penis