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Case Reports
. 2013 Jan-Feb;88(1):121-4.
doi: 10.1590/s0365-05962013000100019.

Umbilical endometriosis: report of a case and its dermoscopic features

Affiliations
Case Reports

Umbilical endometriosis: report of a case and its dermoscopic features

Thais Jerez Jaime et al. An Bras Dermatol. 2013 Jan-Feb.

Abstract

Cutaneous endometriosis is a rare manifestation of endometriosis, representing 0.5% to 1% of all endometriosis cases. It can be divided into primary and secondary, when appearing spontaneously or after a surgical procedure, when it is mostly found on surgical scar tissue. Some etiologies were proposed, but none of them could entirely explain the appearance of the tumor. Differential diagnosis includes melanoma, metastatic nodule, keloid and pyogenic granuloma. Dermoscopic features are not yet well established, but there are some characteristics that suggest the diagnosis. Treatment is surgical in larger sized lesions. Malignization can occur. The screening for endometriosis is mandatory by means of gynecologic, imaging and marked-tumor evaluation. We report a case of primary umbilical endometriosis and discuss its dermoscopic aspects.

A endometriose cutânea é forma rara de endometriose, representando de 0,5% a 1% de todos os casos da doença. Pode ser dividida em forma primária, de surgimento espontâneo, ou secundária, após procedimentos cirúrgicos aonde geralmente encontra-se sobre a cicatriz cirúrgica. Diversas etiologias foram propostas, porém, nenhuma capaz de explicar inteiramente seu aparecimento. Diagnósticos diferenciais incluem melanoma, nódulos metastáticos, quelóide e granuloma piogênico. A dermatoscopia da lesão ainda não foi bem estabelecida, mas existem alguns achados que podem sugerir o diagnóstico. O tratamento é cirúrgico nos casos de lesões maiores e o screening para endometriose é mandatório através de avaliação ginecológica, de imagem e marcador tumoral. Relatamos um caso de endometriose cutânea primária e discutimos seus aspectos dermatoscópicos.

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Conflict of interest statement

Conflict of Interests: None.

Figures

FIGURE 1
FIGURE 1
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
FIGURE 2
FIGURE 2
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
FIGURE 3
FIGURE 3
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
FIGURE 4
FIGURE 4
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
FIGURE 5
FIGURE 5
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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