33 - Lichen Nitidus and Lichen Striatus

Question 1

Once considered a tuberculoid reaction, is currently regarded as an idiopathic lichenoid tissue reaction

Answer 1

Lichen nitidus

Question 2

Can help distinguish palmar lichen nitidus from lichen planus

Answer 2

Minute keratotic spicules, or central plugs, on the central, palmar surfaces

Question 3

Classic histopathologic description of lichen nitidus

Answer 3

“Ball and claw” pattern with involvement of up to three dermal papillae

Question 4

Lichen nitidus prognosis

Answer 4

Eventually resolves within 1 year

Question 5

May be associated with a more chronic course of lichen nitidus

Answer 5

Palmoplantar disease

Question 6

First-line topical treatments for lichen nitidus

Answer 6

Mid- to high-potency topical corticosteroids

Question 7

First-line systemic agents in cases of pruritus in lichen nitidus

Answer 7

Antihistamines

Question 8

Up to 60% of individuals have a personal or family history of atopy

Answer 8

Lichen striatus

Question 9

Lichen striatus prognosis

Answer 9

Self-limited with a mean duration of approximately 6 to 12 months