case_images: PMC5396452_01
case_images: Vellus hairs present in cysts from clinical presentation case #1, a 15-year-old male patient. Cyst contents were expressed via incision and drainage and mounted with a coverslip without KOH. Scale bar = 100 microns.
case_images: CRIDM2017-3861972.001.jpg
case_images: PMC5396452_01_CRIDM2017-3861972.001.jpg
case_images: fig1
case_images: I&D expression of the few remaining lesions resulted in oily, curd-like material containing multiple vellus hairs (Figure 1).
case_images: Representative photomicrograph of a steatocystoma stained with hematoxylin and eosin (H&E) at 100x (a) and 400x (b) magnification. Abundant sebaceous input is clearly visible in the cyst wall.
case_images: CRIDM2017-3861972.002.jpg
case_images: PMC5396452_01_CRIDM2017-3861972.002.jpg
case_images: fig2
case_images: While this patient's lesions were not biopsied, a representative photomicrograph of a steatocystoma is shown in Figure 2.
case_images: PMC5396452_02
case_images: (a) Clinical presentation case #2, a 67-year-old female patient, presurgery. Numerous periorbital 1-2 mm white and yellow papules are shown. Papules inside the highlighted region (black box) were removed surgically. (b) Clinical presentation case #2, one year after surgery. No recurrence of removed papules was observed (boxed region).
case_images: CRIDM2017-3861972.003.jpg
case_images: PMC5396452_02_CRIDM2017-3861972.003.jpg
case_images: fig3
case_images: A 67-year-old Caucasian female presented with numerous 1-2 mm white and yellow papules in a bilateral periorbital distribution (Figure 3(a)), which had emerged over the course of 15 years. One year after surgery, no recurrence of the expressed cysts was noted (Figure 3(b)).
case_images: Representative photomicrograph of EVHC stained with H&E at 100x (a) and 400x (b) magnification. Keratin and numerous vellus hair shafts are visible in the cyst lumen.
case_images: CRIDM2017-3861972.004.jpg
case_images: PMC5396452_02_CRIDM2017-3861972.004.jpg
case_images: fig4
case_images: A representative photomicrograph of an EVHC lesion is shown in Figure 4.