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Primary Invasive Ductal Carcinoma Arising in Axillary Accessory Breast: A Case Report

겨드랑이 부유방 조직에서 발생한 원발성 유방암: 증례 보고

  • Seo Young Park (Department of Radiology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital) ;
  • Jeeyeon Lee (Department of Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital) ;
  • Ji Young Park (Department of Pathology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital) ;
  • Gab Chul Kim (Department of Radiology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital) ;
  • Jongmin Park (Department of Radiology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital) ;
  • Jung Geun Cha (Department of Radiology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital) ;
  • Hye Jung Kim (Department of Radiology, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital)
  • 박서영 (경북대학교 의과대학 칠곡경북대학교병원 영상의학과) ;
  • 이지연 (경북대학교 의과대학 칠곡경북대학교병원 외과) ;
  • 박지영 (경북대학교 의과대학 칠곡경북대학교병원 병리과) ;
  • 김갑철 (경북대학교 의과대학 칠곡경북대학교병원 영상의학과) ;
  • 박종민 (경북대학교 의과대학 경북대학교병원 영상의학과) ;
  • 차중근 (경북대학교 의과대학 경북대학교병원 영상의학과) ;
  • 김혜정 (경북대학교 의과대학 칠곡경북대학교병원 영상의학과)
  • Received : 2023.04.13
  • Accepted : 2023.10.14
  • Published : 2024.03.01

Abstract

Ectopic breast tissue can develop along the mammary ridge from the axilla to the groin, and the most common site is the axillae. Primary carcinoma of ectopic breast tissue is extremely rare. We report a rare case of a 61-year-old woman with a palpable mass in her left axilla who had a history of surgical excision of accessory breast tissue in the same area. Mammography (MMG), including axillary tail view, ultrasound (US), and breast MRI were performed. We evaluated the extent and characteristics of the microcalcifications in the axillary tail view. A US-guided biopsy was done, and histopathology revealed an invasive ductal carcinoma. Enhanced abdominal CT revealed multiple hepatic masses consistent with metastases, and the patient received palliative chemotherapy. Herein, we present a rare case of breast cancer arising from accessory breast tissue in the axilla, best appreciated on the axillary tail view of the patient's MMG.

이소성 유방조직은 겨드랑이에서 사타구니 선까지 유방 능선을 따라 발생할 수 있으며 가장 일반적으로 발생하는 부위는 겨드랑이이다. 이소성 유방조직에서 발생하는 원발성 암종은 극히 드물다. 왼쪽 겨드랑이에 부유방조직을 절제한 병력이 있는 61세 여성이 왼쪽 겨드랑이에 만져지는 종괴로 내원하였고 종괴의 평가를 위해 액와미부 촬영을 포함한 유방촬영술, 초음파 및 유방 MRI를 시행하였으며 특히 액와미부 촬영으로 왼쪽 겨드랑이의 특징적인 악성미세석화화의 양상과 범위를 평가하였다. 초음파 유도하 생검술을 통해 이 병변은 침윤성 유방암으로 진단되었고 조영증강 복부 CT에서 다발성 간전이가 확인되어 환자는 이후 고식적 항암요법을 받았다. 저자들은 겨드랑이 부유방 조직에서 발생한 드문 원발성 유방암에 대해 액와미부 촬영을 시행한 증례를 보고하고자 한다.

Keywords

References

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