Digital Dermatopathology Digest Post-Test

A skin biopsy of a lesion on the face shows acantholytic dyskeratosis. Which features support the diagnosis of warty dyskeratoma?*

Multiple pruritic lesions
Enlarged nuclei in the basal layer
Columns of parakeratosis
Solitary lesion

A 50-year-old male underwent colonoscopy which revealed a multitude of polyps in the colon. The patient has a family history of colorectal cancer. What dermatological findings would support the diagnosis?*

Steatocystoma
Epidermoid cyst
Neurofibroma
Basal cell carcinoma

A 16-year-old male presents with a recent onset of multiple cysts on the trunk. His father had the same history. Which of the following findings would NOT be associated with this disease?*

Plantar keratoderma
Natal teeth
Nail dystrophy
Epidermoid cyst

A 60-year-old female presents with a nodule on her scalp, which has recently grown in size. The nodule is 10 cm in diameter and ulcerated. What histological features would support a diagnosis of a pilar neoplasm?*

Cyst lining with matrical cells and keratin with “ghost” cells
Cyst lining lacking a granular layer with abrupt keratinization
Cyst lining lacking a granular layer with “red roof” cuticle
Cyst lining with granular layer and basketweave keratin

Digital Dermatopathology Digest Post-Test

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