PMC5726705_01
A - Clinical image of a reddish nodule in the forearm.
B - polarized dermoscopy showing dotted, and some
coiled vessels arranged in serpiginous lines. C -
histologic image, X10 Hematoxylin & eosin with hyperkeratosis, areas
of hypergranulosis and irregular acanthosis with foci of basal cell
liquefactive degeneration and lichenoid lymphocytic infiltrate
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PMC5726705_01_abd-92-05-s1-0142-g01.jpg
f1
Histopathologic analysis confirmed a lichen-planus-like keratosis (LPLK) (Figure 1).
PMC5726705_02
A Polarized dermoscopy shows coiled an dotted vessels
arranged in linear and serpiginous rows (B) clinical
reddish papule on the lower back (C) histologic image 10x
Hematoxylin & eosin of basaloid cells regular acanthosis, with
fusion of the rete ridges.
abd-92-05-s1-0142-g02.jpg
PMC5726705_02_abd-92-05-s1-0142-g02.jpg
f2
Histopathology demonstrated an acanthotic type of seborrheic keratosis (Figure 2).
PMC5726705_03
A - Clinical image of an itching reddish plaque in left
mandibular region B - polarized dermoscopy showing a small
ulceration on the right up corner, and mostly coiled vessels arranged in
a serpiginous lines C - histologic image X10 Hematoxylin
& eosin showing keratotic plugs and intraepidermal cyst on an
irregular basaloid cell proliferation
abd-92-05-s1-0142-g03.jpg
PMC5726705_03_abd-92-05-s1-0142-g03.jpg
f3
Biopsy confirmed a diagnosis of seborrheic keratosis (Figure 3).