Pediatric emergency medicine trisk 1372 1372
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otherwise healthy. Nonetheless, it is advisable to ask about any risk factors
or family history of hepatitis C.
Since patients with lichen planus are usually uncomfortably itchy,
treatment is recommended. For the body affected areas of skin, topical
therapy using moderate potency topical steroids such as fluocinolone
0.025% or triamcinolone 0.1% twice daily is suggested for 2 to 4 weeks to
moderate the pruritus. For more widespread involvement seen in generalized
lichen planus, or those with more severe oral or genital involvement which
may be sore or painful, a course of oral corticosteroid therapy or other
immunosuppressants may be necessary. Since lichen planus is a chronic
condition, consultation with a dermatologist is recommended.
Lichen striatus
Lichen striatus is a papulosquamous condition that most commonly presents
as a single linear, scaly, and thickened plaque consisting of smaller pink
papules, typically on an extremity. The lesion is often discontinuous and
follows the curvilinear lines of Blaschko. After several months, the papular
component fades, leaving behind hypopigmented areas in the same linear
configuration ( Fig. 70.13 ). Lichen striatus is most often seen in schoolaged children. In contrast, inflammatory linear verrucous epidermal nevi
(ILVEN) which can look similar, are often earlier in onset, arising in infancy,
and may be more widespread ( Fig. 70.14 ).
FIGURE 70.13 Lichen striatus.
