case_images: PMC5312194_01
case_images: Irregular hyperpigmented lesion on the left buttock, with a diameter of 1
  cm
case_images: abd-92-01-0124-gf01.jpg
case_images: PMC5312194_01_abd-92-01-0124-gf01.jpg
case_images: f1
case_images: Clinical examination revealed a 1 cm hyperpimented (half dark brown and half light brown) macule with relatively regular borders (Figure 1).
case_images: The dermoscopy of the lesion shows an amorphous light brown area adjacent to
  a dark brown area containing irregularly distributed globules, streaks and
  blackened gray parts
case_images: abd-92-01-0124-gf02.jpg
case_images: PMC5312194_01_abd-92-01-0124-gf02.jpg
case_images: f2
case_images: Dermoscopy showed an amorphous lightbrown areaadjacent to a dark brown area, containing irregularly distributed globules, streaks and grayished-black portions (Figure 2).
case_images: Pigmented Bowen's disease: loss of polarity, atypias in all layers of the
  epidermis, mitoses, dyskeratosis and dyskaryosis. Presence of melanophages
  and increased pigmentation of keratinocytes (Hematoxylin & eosin
  x400)
case_images: abd-92-01-0124-gf03.jpg
case_images: PMC5312194_01_abd-92-01-0124-gf03.jpg
case_images: f3
case_images: An excisional showed loss of polarity, atypias in all layers of the epidermis, mitoses, dyskeratosis and dyskaryosis (Figure 3).
case_images: Fontana-Masson staining reveals prominent build-up of melanin in all the
  layers of the epidermis and melanophages in the superficial dermis
  (Hematoxylin & eosin x100)
case_images: abd-92-01-0124-gf04.jpg
case_images: PMC5312194_01_abd-92-01-0124-gf04.jpg
case_images: f4
case_images: The Fontana-Masson stain showed a heavy accumulation of melanin in the epidermis and melanophages in the upper dermis (Figure 4).