PMC6802090_01
(a) Erythematous plaque runs from the root of the frontal scalp down to the
glabella. Two red and one purple papules are present in the region of the
glabella, as well (white arrows). (b) The erythematous plaque appears to
continue, after a brief interruption, down the left dorsum of the nose
(black arrows). (c) Periodic acid-Schiff (PAS) staining of skin biopsy shows
follicular plugging, vacuolar degeneration of the basal layer and lymphocyte
predominant periadnexal inflammation.
10.1177_2050313X19882843-fig1.jpg
PMC6802090_01_10.1177_2050313X19882843-fig1.jpg
fig1-2050313X19882843
On clinical examination, a sharply demarcated pink to violaceous linear patch was noted extending from the root of his frontal scalp to the nasal tip (Figure 1(a)-(b)). However, the histological picture was diagnostic of discoid lupus showing characteristic features of basal vacuolation, follicular plugging, lichenoid infiltrate and mucin deposition (Figure 1(c)).