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The Dermatologist’s Board Review - May 2020

The Dermatologist’s Board Review - May 2020

The contents of these questions are taken from the Galderma Pre-Board Webinar. The Pre-Board Webinar is now an online course. For details, go to

Habit-tic deformity1. This 43-year-old stockbroker has been treated by his primary care physician for a clinically diagnosed fungal infection with fluconazole for 6 months. The nails have not changed. Although potassium hydroxide and culture should be done, they will probably be negative. He has:

a) Habit-tic deformity
b) Median nail dystrophy
c) Chronic paronychia
d) Eczema of the proximal nail fold
e) Yellow nail syndrome

Pterygium inversum unguis2. The finger of this patient shows a severe hypertrophy of the distal nail unit. It is most likely due to:

a) Verrucous squamous cell carcinoma
b) Subungual wart
c) Pachyonychia congenita tarda
d) Pterygium inversum unguis
e) Hypertrophic lichen planus



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