Lichen Striatus: Rare Linear Dermatosis

What is the most common age of onset for lichen striatus?

Between 3 and 5 years (correct)
Between 5 and 10 years
Between 10 and 15 years
Between 18 and 25 years

What is the gender ratio for lichen striatus?

4:1 (female to male)
1:1
3:2 (male to female)
2-3:1 (female to male) (correct)

What is a possible cause of lichen striatus according to the text?

Environmental stressors (correct)
Hormonal imbalance
Excessive sunlight exposure
Genetic inheritance

What is the etiology of lichen striatus based on the text?

Somatic mosaicism (D) Signup and view all the answers

Which part of the body does lichen striatus most frequently affect?

Limbs (C) Signup and view all the answers

What percentage of individuals with lichen striatus have a personal or family history of atopy?

60% (B) Signup and view all the answers

What is the most common time of onset for lichen striatus outbreaks?

Spring and summer (A) Signup and view all the answers

Which virus has been detected within lesions of linear lichen planus?

Herpes virus (D) Signup and view all the answers

What is the typical presentation of lichen striatus?

Flat-topped, 1- to 3-mm, pink, tan, or hypopigmented papules in a linear configuration or Blaschkoid distribution (C) Signup and view all the answers

Where is pruritus most commonly present in cases of lichen striatus?

In 5-34% of cases (D) Signup and view all the answers

Which body locations are most commonly affected by lichen striatus?

Extremities and trunk (C) Signup and view all the answers

What type of skin changes are seen in cases of nail involvement in lichen striatus?

Longitudinal ridging, onycholysis, splitting, fraying, and loss of the nail plate (B) Signup and view all the answers

Which cells are the predominant infiltrate at the dermoepidermal junction (DEJ) in lichen striatus?

CD8 cells (C) Signup and view all the answers

What is the mean duration of lichen striatus?

~6-12 months (A) Signup and view all the answers

What is the recommended first-line topical treatment for symptomatic pruritus in lichen striatus?

Topical steroids (B) Signup and view all the answers

What percentage of lichen striatus cases show postinflammatory hypopigmentation?

50% (B) Signup and view all the answers

Which cells are decreased overall in lichen striatus?

Langerhans cells (C) Signup and view all the answers

What is the first-line topical treatment for symptomatic pruritus in lichen striatus?

Low to mid-potency topical steroids (B) Signup and view all the answers

Which medication can be used as an effective alternative for lichen striatus if there is facial involvement or disease refractory to topical corticosteroids?

Topical calcineurin inhibitors (B) Signup and view all the answers

What may be helpful in cases of more generalized itch or in cases of sleep disruption in lichen striatus?

Oral antihistamines (C) Signup and view all the answers

What is a possible treatment combination for nail involvement in lichen striatus, as mentioned in the text?

Topical corticosteroids and calcineurin inhibitors combined with intralesional corticosteroids (B) Signup and view all the answers

What is a common histologic finding in cases of lichen striatus?

Mild spongiosis with a lichenoid tissue reaction (A) Signup and view all the answers

Which skin condition can mimic the histologic features of lichen striatus?

Lichen planus (C) Signup and view all the answers

In clinical practice, which type of skin changes are rarely seen in cases of lichen striatus?

Vesicles (A) Signup and view all the answers