PMC9709175_01
Single, ulcerated, indurated, plaque present over the left perianal region.
10.1177_2050313X221139559-fig1.jpg
PMC9709175_01_10.1177_2050313X221139559-fig1.jpg
fig1-2050313X221139559
The examination revealed single, ulcerated, indurated, non-tender, plaque present over the left perianal region as shown in Figure 1.
(a) Coronoid lamellae of parakeratotic cells with an absent granular layer beneath them and dense perivascular lymphocytic infiltrate in superficial dermis. (b) A high-power view of coronoid lamellae is delineated.
10.1177_2050313X221139559-fig2.jpg
PMC9709175_01_10.1177_2050313X221139559-fig2.jpg
fig2-2050313X221139559
The histological examination revealed coronoid lamellae of parakeratotic cells with an absent granular layer beneath them, and superficial dermis showed dense perivascular lymphocytic infiltrate as shown in Figure 2.