Case Report
Volume: 4 | Issue: 5 | Published: May 26, 2020 | Pages: 161 - 165 | DOI: 10.24911/ejmcr/173-1571690517
Ectopic breast tissue carcinoma - a case report
Authors: Isabel Rodrigues , Nuno Pereira , Ana Varelas , Nuno Coimbra , Conceicao Leal , Luis Lencastre , Ana Ferreira , Isabel Azevedo , Helena Pereira
Article Info
Authors
Isabel Rodrigues
External Radiotherapy Department, Instituto Portugues de Oncologia Francisco Gentil do Porto, Portugal
Nuno Pereira
Medical Physics Department, Instituto Portugues de Oncologia Francisco Gentil do Porto, Portugal
Ana Varelas
Pathological Anatomy Department, Instituto Portugues de Oncologia Francisco Gentil do Porto, Portugal
Nuno Coimbra
Pathological Anatomy Department, Instituto Portugues de Oncologia Francisco Gentil do Porto, Portugal
Conceicao Leal
Pathological Anatomy Department, Instituto Portugues de Oncologia Francisco Gentil do Porto, Portugal
Luis Lencastre
Surgical Oncology Department, Instituto Português de Oncologia Francisco Gentil do Porto, Portugal
Ana Ferreira
Medical Oncology Department, Instituto Português de Oncologia Francisco Gentil do Porto, Portugal
Isabel Azevedo
External Radiotherapy Department, Instituto Portugues de Oncologia Francisco Gentil do Porto, Portugal
Helena Pereira
External Radiotherapy Department, Instituto Portugues de Oncologia Francisco Gentil do Porto, Portugal
Publication History
Received: October 23, 2019
Revised: April 30, 2020
Accepted: May 02, 2020
Published: May 26, 2020
Abstract
Background: Ectopic breast cancer is a rare entity and an important diagnostic and treatment challenge. Case Presentation: 46-year-old female with previous history of resection of ectopic axillary breast tissue who was referred to our Institution after a second resection following an increase in left axillary volume. Histology reported a ductal ectopic breast tissue carcinoma that invaded the deep layer of the dermis and was positive for estrogen and progesterone receptors and Human Epidermal growth factor Receptor-type 2. After being referred to our Institution, surgical margin re-excision and sentinel node biopsy were performed. The patient initiated hormone therapy and underwent adjuvant radiotherapy to the breast and axilla (50 Gy/25 fractions, in daily 2 Gy fractions with a 3D conformal radiation therapy technique) and boost with bolus to the axilla (to complete 60 Gy). She remains in follow-up, with no recurrence to date. Conclusion: A high index of suspicion is required for the timely diagnosis of this rare condition. Since there are no specific guidelines, treatment remains a challenge.
Keywords: Breast cancer, breast ectopic carcinoma, breast ectopic tissue, axilla, adjuvant radiotherapy, case report, green
