Featured Derm Dx

Derm Dx: Severe ridging along the nails

Derm Dx: Severe ridging along the nails

A patient aged 45 years presents complaining of ridging along her nails. She denies trauma. She also denies rubbing or ...

Derm Dx: Blue-purple macule beneath the nail

Derm Dx: Blue-purple macule beneath the nail

A patient aged 28 years presents complaining of pain in her fingernail, which has been present for four months.

On physical ...

Derm Dx: Annular patch with serpiginous borders

Derm Dx: Annular patch with serpiginous borders

A patient aged 55 years presents with a rash on his face. It has been present for a month. ...

Derm Dx: Bluish papules on the scalp

Derm Dx: Bluish papules on the scalp

A patient aged 68 years presents complaining of bluish papules on his scalp. His medical history is significant for malignant ...

Derm Dx: Extensive blistering on the elbows, knees, forearms, and feet

Derm Dx: Extensive blistering on the elbows, knees, forearms, and feet

A patient aged 3 years presents with skin fragility and sporadic blistering that her parents first noticed during infancy. The ...

Derm Dx: Purplish patches and plaques on the legs

Derm Dx: Purplish patches and plaques on the legs

A patient aged 86 years presents with purplish patches and plaques on his lower legs. The lesion have been ...

DermDx: A widening and darkening streak in the nail

DermDx: A widening and darkening streak in the nail

A patient aged 36 years presents complaining of a brown streak in his nail, and states he is not sure ...

Derm Dx: 'Punched out' erosions on the face and neck

Derm Dx: 'Punched out' erosions on the face and neck

A patient aged 8 years presents with her mother. During the previous 24 hours she developed erosions with a “punched ...

Derm Dx: Painful erythematous patches on the legs

Derm Dx: Painful erythematous patches on the legs

A patient aged 21 years presents with painful erythematous patches on her bilateral thighs and calves. She had undergone a ...

Derm Dx: A darkening, thickening birthmark

Derm Dx: A darkening, thickening birthmark

A patient aged 4 years presents with her mother with a chief complaint of a birthmark on the right leg ...

Derm Dx: White patch of skin since infanthood

Derm Dx: White patch of skin since infanthood

An 8-year-old patient presents for a routine physical exam. His mother notes a white patch of skin that she states ...

Derm Dx: White patch around a mole

Derm Dx: White patch around a mole

A 16-year-old patient presented with complaints of a whitish patch that had developed around one of her moles.

Derm Dx: Persistent swelling on the elbow

Derm Dx: Persistent swelling on the elbow

A 65-year-old patient presented with complaints of persistent swelling of his elbow. The swelling is associated with minimal pain. He ...

Derm Dx: A necrotic mass on the back

Derm Dx: A necrotic mass on the back

A 57-year-old patient presented with a large, oblong necrotic mass on the left posterior lateral region of his back.

The ...

Derm Dx: Progressive generalized blisters

Derm Dx: Progressive generalized blisters

A 51-year-old patient presents complaining of blisters on his face, scalp, trunk and groin that have been progressing for several ...

Derm Dx: Furrowing on the scalp

Derm Dx: Furrowing on the scalp

A 45-year-old patient presents for a routine health maintenance evaluation. You note furrowing in his scalp. He states that he ...

Derm Dx: A brown plaque on the nose

Derm Dx: A brown plaque on the nose

A 45-year-old woman presents complaining of an asymptomatic brown plaque on her face that has been present for four months. ...

Derm Dx: Firm papules on the scrotum

Derm Dx: Firm papules on the scrotum

A 36-year-old male presents with firm, round, papules on his scrotum. The patient is otherwise asymptomatic.

Derm Dx: A pruritic scaly rash on the beard

Derm Dx: A pruritic scaly rash on the beard

A 68-year-old male develops an itchy scaly rash in his beard. He admits that he dyed his beard several days ...

Derm Dx: Rough, ridged fingernails and toenails

Derm Dx: Rough, ridged fingernails and toenails

An 8-year-old male presents with his parents. They complain that for the past 4 months his nails have been “all ...

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