Dermatologist Certificate Dermatopathology and Histology 2

Question 1

Pautrier microabscesses on skin biopsy are characteristic of which condition?

Accepted Answer

Mycosis fungoides

Answer

Psoriasis

Answer

Atopic dermatitis

Answer

Folliculitis decalvans

Question 2

'Interface dermatitis' describes inflammatory damage primarily at which anatomical site?

Accepted Answer

At the dermal-epidermal junction

Answer

Between the dermis and subcutaneous fat

Answer

Within the mid-dermis

Answer

Between the dermis and follicular epithelium

Question 3

The 'saw-tooth' pattern of rete ridges on skin histology is most characteristic of which condition?

Accepted Answer

Lichen planus

Answer

Psoriasis

Answer

Systemic lupus erythematosus

Answer

Seborrheic dermatitis

Question 4

Flame figures in the dermis are classically associated with which dermatological condition?

Accepted Answer

Wells syndrome (eosinophilic cellulitis)

Answer

Erythema nodosum

Answer

Dermatitis herpetiformis

Answer

Granuloma annulare

Question 5

A 'Grenz zone' on dermatopathology refers to which histological finding?

Accepted Answer

A band of spared papillary dermis between the epidermis and a dermal infiltrate

Answer

A clear halo surrounding a tumor nest

Answer

The zone of acanthosis seen in psoriasis

Answer

The normal papillary dermis in unaffected skin

Question 6

Acantholysis, the disruption of cell-to-cell adhesion between keratinocytes, is a hallmark histological finding in which condition?

Accepted Answer

Pemphigus vulgaris

Answer

Epidermolysis bullosa

Answer

Bullous pemphigoid

Answer

Dermatitis herpetiformis

Question 7

Which inflammatory cell type predominates in the histological findings of allergic contact dermatitis?

Accepted Answer

Lymphocytes

Answer

Neutrophils

Answer

Plasma cells

Answer

Eosinophils