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Primary cutaneous endometriosis of the umbilicus
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Received: ,
Accepted: ,
How to cite this article: Wan C, Chen L. Primary cutaneous endometriosis of the umbilicus. Indian J Dermatol Venereol Leprol 2021;87:146-146.
A 29-year-old woman presented with a 1-year history of an umbilical mass, complaining of periodic pain in the umbilical area synchronized with menstruation. She had no history of surgery or abdominal trauma. Examination revealed a firm, 2.2 cm × 1.8 cm, dark-brown mass on her umbilicus [Figure 1a]. Abdominal computed tomography showed an increased density at the umbilicus without connection to any abdominal organs. Histopathological examination showed multiple endometrial glandular structures surrounded by cellular endometrial-type stroma in the dermis [Figure 1b]. Based on these findings, the umbilical lesion was diagnosed as primary cutaneous endometriosis and it was removed by complete surgical excision.
- A well-circumscribed, firm, 2.2 cm × 1.8 cm, dark-brown mass arising from the umbilicus
- Histopathological examination showed, within the dermis, multiple endometrial glandular structures (black arrows) surrounded by cellular endometrial-type stroma (asterisks) in which there were focal hemosiderin deposits (white arrows) (H and E, ×200)
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