Thaïs, 9 years old, Cutaneous anomalies

It was atopic dermatitis.

Let’s rule out differential diagnoses:

• Scabies:

Nocturnal pruritus, pruritus in family members, infectious contact, clinical features with furrows.

• Psoriasis:

Found in typical locations: elbows, knees, lumbar region, scalp, +- nails with a context or history of psoriasis, without the atopic context or animal contact.

Histology if necessary.

• Mycosis (ringworm):

Lesions with geographic edges, inflammatory at the edges, with scarring at the centre, centrifugal, recent +- pruritic.

Animal contact and mycology if necessary.

It is indeed atopic dermatitis.

Let’s rule out differential diagnoses:

• Scabies:

Nocturnal pruritus, pruritus in family members, infectious

contact, clinical features with furrows.

• Psoriasis:

Found in typical locations: elbows, knees, lumbar region, scalp, +- nails with a context or history of psoriasis, without the atopic context or animal contact.

Histology if necessary.

• Mycosis (ringworm):

Lesions with geographic edges, inflammatory at the edges, with scarring at the centre, centrifugal, recent +- pruritic.

Animal contact and mycology if necessary.

It was atopic dermatitis.

Let’s rule out differential diagnoses:

• Scabies:

Nocturnal pruritus, pruritus in family members, infectious contact, clinical features with furrows.

• Psoriasis:

Found in typical locations: elbows, knees, lumbar region, scalp, +- nails with a context or history of psoriasis, without the atopic context or animal contact.

Histology if necessary.

• Mycosis (ringworm):

Lesions with geographic edges, inflammatory at the edges, with scarring at the centre, centrifugal, recent +- pruritic.

Animal contact and mycology if necessary.

It was atopic dermatitis.

Let’s rule out differential diagnoses:

• Scabies:

Nocturnal pruritus, pruritus in family members, infectious contact, clinical features with furrows.

• Psoriasis:

Found in typical locations: elbows, knees, lumbar region, scalp, +- nails with a context or history of psoriasis, without the atopic context or animal contact.

Histology if necessary.

• Mycosis (ringworm):

Lesions with geographic edges, inflammatory at the edges, with scarring at the centre, centrifugal, recent +- pruritic.

Animal contact and mycology if necessary.