case_images: PMC10496920_01
case_images: (A-C) Diffuse thickening of facial skin, thickening of skin lines and furrow deepening.
case_images: CCID-16-2453-g0001.jpg
case_images: PMC10496920_01_CCID-16-2453-g0001.jpg
case_images: f0001
case_images: After some cysts are compressed, white lipid substances can be seen to be excreted (Figure 1A-1C). 
case_images: (A) Epidermis became thinner, and the pilosebaceous orifice expanded in a cystic manner, containing keratin plugs, extending to the deep layer of the dermis (HEx10). (B) Collagen fibers in the superficial layer of the dermis became basophilic with the formation of cysts (HEx20).
case_images: CCID-16-2453-g0002.jpg
case_images: PMC10496920_01_CCID-16-2453-g0002.jpg
case_images: f0002
case_images: The superficial layers of the dermis have scattered lymphocytic infiltrates (Figure 2A and B).
case_images: (A) Multiple mixed-echo structures can be seen in the subcutaneous soft tissue, with raised skin surface, regular shape, circular shape, and uneven internal echoes. (B) Strong echo structures can be seen in the rear, and some openings can be seen on the epidermis.
case_images: CCID-16-2453-g0003.jpg
case_images: PMC10496920_01_CCID-16-2453-g0003.jpg
case_images: f0003
case_images: CDFI: Small blood flow signal is visible (Figure 3A and B).  