Actinic Lichen Nitidus with Dermoscopic Features, and Response to Hydroxychloroquine.
Lichen nitidus is rare disorder, with minute, shiny, flattopped papules, usually on trunk and genitalia.
Actinic lichen nitidus is a photo-induced eruption, with clinical and histologic
features of lichen nitidus. It is seen commonly in dark skinned patients. It has been termed “summertime lichenoid eruption” previously.
Dermoscopic features of palmoplantar and non-palmoplantar LN have been
described scantily in the past. Cutaneous LN showed round, elevated, shiny, smooth surface without scales with
reddish vascular network, while palmoplantar LN showed pits with thin scales as well as punctate hemorrhagic variants.
A 27-years-old male with type V skin type presented to dermatology out patient department with complaints of asymptomatic minute grouped and discrete, skin colored, flat topped papules on dorsal aspect of fingers, knuckles, wrists, forearms, dorsal aspect of legs and face of 3 months duration.
Lesions appeared at the onset of summer. Lesions initially started from dorsal aspect of the fingers, with gradual involvement of the forearms and legs. Patient also had a few discrete lesions on his forehead, but oral cavity, palms, soles, nails and genitalia were spared.
There is history of appearance of lesions at sites of scratching, with evidence of
koebnerization. There is no history of itching or oozing from the lesions. There is
no significant family history or similar history in the past.
Trichol Cosmetol Open J. 2019; 3(1): 11-14. doi: 10.17140/TCOJ-3-112