case_images: PMC3699952_01
case_images: Umbilical endometriosis. Clinical aspect. A shiny reddish-brown tumor, with well defined limits, located on the umbilicus scar. The patient referred one episode of spontaneous bleeding
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case_images: The lesion was a shiny reddish-brown nodule, measuring 3cmx3cm, painful to the touch and that alternated in size since its onset (Figure 1).
case_images: Umbilical endometriosis. Dermoscopic aspect by epiluminescence microscopy. 10x magnification. Number 1: a regular pigmented network is noticed in its central area. Number 2: an amorphous brown area with white scar tissue in the center, caused by a biopsy procedure. Number 3: a homogeneous reddish pigmentation is regularly distributed
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case_images: It showed homogeneous reddish localized pigmentation, with no differentiated structures. In addition, an amorphous brown area was present, where normal skin network was more evident in some parts (Figure 2).
case_images: Umbilical endometriosis. Histopathological aspect. Stained by Hematoxylin and Eosin (HE). On left lower portion, epidermis with discrete acanthosis. In the dermis, a myxoid stroma aspect with fibroblastic proliferation, evidenced by the spinde-shaped cells. On the upper right portion, glandular type cells, characteristic of endometriosis
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case_images: The biopsy revealed fibroblastic proliferation in the dermis and endometrial glandular tissue, of the decapitation secretion type (Figures 3 and 4).
case_images: Umbilical endometriosis. Histopathological aspect, stained by Hematoxylin and Eosin (HE). The upper right portion of the first histopathological picture shows a higher approach to the decapitation secretion of the glandular cells. These features belong to the secretory phase of the glandular epithelium
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case_images: The biopsy revealed fibroblastic proliferation in the dermis and endometrial glandular tissue, of the decapitation secretion type (Figures 3 and 4).
case_images: Umbilical Endometriosis. Histopathological aspect. Stained by Hematoxylin and Eosin (HE). In the dermis, hemosiderin deposit located mostly around vessels is evidence of previous bleeding
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case_images: It also revealed deposit of hemosiderin in the dermis as an evidence of previous bleeding (Figure 5).