Derm

Question 1

Suspicious skin CA (any type) of 1 cm diameter: Initial management?

Answer 1

Excisional biopsy with narrow margins (1-3mm)

Cf. Punch biopsy is too small for Dx, and shave biopsy is contraindicated in skin CA.

Question 2

Fungal infection with Tan, pink, or white macules that do not tan and Fine scales seen when scraped. No pruritis.

Answer 2

Tinea versicolor

Question 3

Herald patch (large, scaly) followed by rash in Christmas tree distribution. Itchy.

Answer 3

Pityriasis rosea (cause unknown, but resolves spontaneously)