Dermatologic Look-Alikes

Asymptomatic red lesions

Asymptomatic red lesions

Two patients present with asymptomatic red lesions -- a 60-year-old man, whose lesion was present for five years before beginning to bleed, and a 27-year-old man whose lesion doubled in size during a two year period. Can you differentiate between the two?

Bimalar facial rashes

Bimalar facial rashes

A 54-year-old nurse and a 26-year old woman both present with bimalar facial rashes caused by two different things. Can you tell the difference?

Trunk rashes with central clearing

Trunk rashes with central clearing

Two patients present with oval-shaped plaques with central clearing on the trunk. Can you tell the difference?

Growing skin plaques with scale

Growing skin plaques with scale

Two patients present to the dermatology clinic with scaly pruritic lesions on the forearm. Can you differentiate between the two?

Diffuse erythematous papules

Diffuse erythematous papules

A 3-year-old boy and 45-year-old man present separately to the dermatology clinic with similar looking erythematous rashes. Can you differentiate between the two?

Linear pink plaques

Linear pink plaques

Two patients present to the dermatology clinic with pink rashes — one with a hyperpigmented rough patch on the nose, the other with pink papules in a linear pattern on the lateral thigh.

Yellow processes on the face

Yellow processes on the face

A patient presents with a yellow plaque on her left eyelid and a yellow papule on her left cheek. Are the two related?

Yellow papules near the nipple

Yellow papules near the nipple

A woman presents with papules on the areola that had been enlarging for several months. A man presents with protuberant papules with a red, yellow and whitish hue. Can you differentiate between the two?

Newly developed brown papules

Newly developed brown papules

Two patients present with newly developed brown papules. The first patient, a 45-year-old man, presented with a new mole that continues to grow and is associated with occasional pruritus and bleeding. The second patient, a 47-year-old man, presented with a 6-month history of a brown, growing "mole." Can you differentiate between the two?

Discoloration of the eyelid

Discoloration of the eyelid

Two patients present with discoloration of the eyelid. The first patient, a black woman aged 65, presents with velvety plaques and skin tags near hear right area that did not itch, burn or hurt. The second, an 8 year old boy with a family history of atopy, presented with eyelid dermatitis. Can you differentiate between the two?