PMC5804107_01
Numerous comedones symmetrically distributed around the perianus at the anal verge.
CRIDM2017-9019682.001.jpg
PMC5804107_01_CRIDM2017-9019682.001.jpg
fig1
She had no comedones in the axilla, below breasts, groin, or other stigmata of hidradenitis suppurativa (Figure 1).
(a) A shave biopsy demonstrating two open comedones, note the wide opening and the thin epithelial lining (40x). (b) A close-up view of one lesion, showing the keratinous material and the multiple hair shaft fragments (100x).
CRIDM2017-9019682.002.jpg
PMC5804107_01_CRIDM2017-9019682.002.jpg
fig2
The comedones were filled with keratinous material and debris as well as multiple hair shaft fragments (Figures 2(a) and 2(b)).