title: Ectopic breast carcinoma.
abstract: A 47-year-old premenopausal woman had a swelling in right axilla which had been diagnosed as "ectopic breast tissue" with an incisional biopsy. A subcutaneous nodule appeared two years ago. The ectopic breast containing the mass was excised with axillary dissection. It was an invasive ductal carcinoma and metastasis was detected in one lymph node. She received local radiotherapy after 6 cycles of chemotherapy and has now been taking hormonotherapy. Ectopic breast tissue has potential for malignant transformation. As its carcinoma has a worse prognosis and a higher incidence of metastasis because of delayed diagnosis, prophylactic excision may be recommended.
authors.affiliation: Department of General Surgery, Haydarpasa Numune Training and Research Hospital, Istanbul, Turkey. munire_k@yahoo.com
authors.forename: Munire
authors.initials: M
authors.lastname: Kayahan
authors.forename: Neset
authors.initials: N
authors.lastname: Koksal
authors.forename: Pembegul
authors.initials: P
authors.lastname: Gunes
authors.forename: Mehmet Ali
authors.initials: MA
authors.lastname: Uzun
authors.forename: Mehmet
authors.initials: M
authors.lastname: Aliustaoglu
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Gunerhan
authors.forename: Ugur
authors.initials: U
authors.lastname: Bugan
mesh_terms: D000328:Adult; D001365:Axilla / Q000473:pathology; D001943:Breast Neoplasms / Q000473:pathology / Q000601:surgery*; D018270:Carcinoma, Ductal, Breast / Q000473:pathology / Q000601:surgery*; D002828:Choristoma / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans