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Case Report
Year: 2020 I Volume: 2 I Issue: 3 I Pages I 7-10 

A rare case of Ductal carcinoma in situ in ectopic breast tissue in the vulva: A case report

Ashraf Farrag1, 2, Waleed Jafar1, Osman Ahmed3, Taleb Buhlaiaqh1, Jawaher Ansari4 

1 Department of Oncology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia.

2 Clinical Oncology Department, Assiut University, Egypt

3 Department of Pathology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia.

4 Department of Oncology, Tawam Hospital, Al Ain, United Arab Emirates.


* Corresponding Author:

Ashraf Farrag, MD, PhD  

Email address:

Source of funding:  None


Conflict of interest: None

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Ectopic breast tissue can be found along the rudimentary mammary line, which extends from the axilla to the inguinal region and disappears during the process of embryogenesis. Like normal breast tissue, this ectopic tissue is prone for malignant transformation. Most of the reported cases were invasive ductal or lobular carcinomas however, only 2 cases of ductal carcinoma in situ (DCIS) in ectopic breast tissue have been reported so far. Diagnosis and management of this rare pathological finding can be challenging. Here we report an interesting case of a 53-year lady with DCIS arising from ectopic breast tissue in the left vulva. The patient was diagnosed after surgical excision of a long standing painless left vulvar lesion. Only postoperative hormonal treatment in the form of tamoxifen was given without any evidence of disease recurrence after 3 years of follow up. We discuss the challenges faced during diagnosis and outline management options for this disease entity.

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