logo Disorders of keratinisation key points test

Scaly skin diseases

Disorders of keratinisation key points test

Match these scaly diseases with the images. Mix and match: [table]

Knees

: Pityriasis rubra pilaris || Pityriasis rubra pilaris is characterized by grouped erythematous follicular papules that may resemble psoriasis. There are localised and generalised childhood and adult forms.

Upper arm

: Keratosis pilaris || Keratosis pilaris is characterized by skin coloured or erythematous hyperkeratinised hair follicles, most often affecting the upper arms, thighs and lateral face.

Back

: Psoriasis || Psoriasis is characterized by well-demarcated, indurated and erythematous scaly plaques.

Scalp

: Psoriasis || Psoriasis is characterized by well-demarcated, indurated and erythematous scaly plaques.

Upper arm

: Keratosis pilaris || Keratosis pilaris is characterized by skin coloured or erythematous hyperkeratinised hair follicles, most often affecting the upper arms, thighs and lateral face.

Lower leg

: Ichthyosis || Ichthyosis results in dry skin with variable degrees of scaling.
Match these “lichen” diseases with the images. Mix and match [table]

Shoulder

: Lichen simplex || Lichen simplex is characterized by one or more chronic, well-demarcated, pruritic and lichenified eczematous plaques.

Tongue

: Lichen planus || Lichen planus is characterized by several to numerous flat-topped, violaceous polygonal papules and plaques.

Lower leg

: Lichen planus || Lichen planus is characterized by several to numerous flat-topped, violaceous polygonal papules and plaques.

Axilla

: Lichensclerosus || Lichen sclerosus is characterized by one or more dry white plaques with “cigarette-paper” appearance. On the vulva, haemorrhages, erosions and blisters may be seen.

Vulva

: Lichen sclerosus || Lichen sclerosus is characterized by one or more dry white plaques with “cigarette-paper” appearance. On the vulva, haemorrhages, erosions and blisters may be seen.

Vulva

: Lichen simplex || Lichen simplex is characterized by one or more chronic, well-demarcated, pruritic and lichenified eczematous plaques.