PMC5726684_01
Alopecia over the frontotemporal region and loss of eyebrow
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f1
A 72-year-old, Caucasian, phototype II female presented with scalp hair loss, with progressive frontotemporal hairline recession and diffuse alopecia of eyebrows and eyelashes of one year's duration (Figure 1).
Reticular hyperpigmentation on the neck and upper chest region
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f2
On physical examination, gray-brown pigmented macules with a smooth surface that had become confluent, forming pigmented patches with a reticular pattern on the submental area, anterior and lateral regions of the neck and upper chest, were seen (Figure 2).
Dermoscopic image of lichen planus pigmentosus with pseudo-network
pattern
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f3
Dermoscopic features were a pseudo-network pattern and areas with gray dots arranged in circles, without telangiectasias or other vascular images (Figure 3).
A - Slightly atrophic epidermis with effacement of rete
ridges. In the dermis, there is a lichenoid reaction and melanophages
(Hematoxylin & eosin, X20). B - Foci of vacuolar
changes of the dermo-epidermal interface and abundant melanophages
deeper in dermis than in postinflammatory pigmentation (Hematoxylin
& eosin, x20)
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f4
Histopathological examination revealed epidermal atrophy, foci of basal vacuolar change and interface lichenoid reaction, isolated necrotic keratinocytes and abundant melanophages in upper dermis, consistent with LPP (Figure 4).