Dermatologist Certificate Dermatopathology and Histology

Question 1

Which histological finding is considered pathognomonic of psoriasis?

Accepted Answer

Munro microabscesses

Answer

Pautrier microabscesses

Answer

Civatte bodies

Answer

Flame figures

Question 2

In which epidermal layer are melanocytes primarily located?

Accepted Answer

Stratum basale

Answer

Stratum corneum

Answer

Stratum granulosum

Answer

Stratum spinosum

Question 3

In dermatopathology, 'spongiosis' refers to which histological finding?

Accepted Answer

Intercellular edema within the epidermis

Answer

Thickening of the stratum corneum

Answer

Loss of cell-to-cell cohesion in the epidermis

Answer

Thinning of the granular layer

Question 4

Civatte bodies (colloid/hyaline bodies) are characteristic of which dermatological condition?

Accepted Answer

Lichen planus

Answer

Psoriasis

Answer

Pemphigus vulgaris

Answer

Dermatitis herpetiformis

Question 5

Subepidermal blisters with neutrophilic microabscesses in dermal papillae are histologically characteristic of which condition?

Accepted Answer

Dermatitis herpetiformis

Answer

Bullous pemphigoid

Answer

Pemphigus vulgaris

Answer

Linear IgA bullous dermatosis

Question 6

Parakeratosis is defined as which histological finding?

Accepted Answer

Retention of nuclei within the stratum corneum

Answer

Absence of the stratum granulosum

Answer

Increased thickness of the stratum spinosum

Answer

Neutrophil infiltration within the epidermis

Question 7

Which histological feature best distinguishes superficial spreading melanoma from a benign compound nevus?

Accepted Answer

Pagetoid spread of melanocytes into upper epidermal layers

Answer

Presence of dermal melanocytes

Answer

Nesting of melanocytes at the dermal-epidermal junction

Answer

Presence of melanin pigment