Close
  Indian J Med Microbiol
 

Figure 1: Reactive perforating collagenosis: (a) A “saucer” shaped epidermal invagination with transepidermal elimination of collagen fibers; (b) a crateriform epidermal invagination filled with basophilic debris (H and E, ×40); (c) vertically oriented collagen fibers at the base penetrating across the epidermis (H and E, ×100); (d) perforating collagen fibers losing the staining quality while traversing across the invagination (Masson's trichrome, ×100)

Figure 1: Reactive perforating collagenosis: (a) A “saucer” shaped epidermal invagination with transepidermal elimination of collagen fibers; (b) a crateriform epidermal invagination filled with basophilic debris (H and E, ×40); (c) vertically oriented collagen fibers at the base penetrating across the epidermis (H and E, ×100); (d) perforating collagen fibers losing the staining quality while traversing across the invagination (Masson's trichrome, ×100)