title: Ductal carcinoma arising from ectopic breast tissue following microcalcification observed on screening mammography: a case report and review of the literature.
abstract: Ectopic breast tissue can occur anywhere along the incompletely regressed mammary ridge. Among the various types of breast choristoma, ectopic breast tissue, which has only glandular tissue without a nipple or areola, is most commonly detected in axillary areas. However, ectopic breast cancer is often not detected until significant clinical symptoms have been revealed, or diagnosis is delayed. Furthermore, an examination of ectopic breast tissue tends to be omitted from a screening mammography. Especially, the microcalcifications of ectopic breast tissue are difficult to delineate on mammography. Herein, the authors report a case of ectopic breast carcinoma that showed clustered microcalcifications on screening mammography, and discuss the interpretation and implications of microcalcification in ectopic breast tissue.
authors.affiliation: Department of Surgery, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Jeeyeon
authors.initials: J
authors.lastname: Lee
authors.affiliation: Department of Surgery, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Jin Hyang
authors.initials: JH
authors.lastname: Jung
authors.affiliation: Department of Surgery, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Wan Wook
authors.initials: WW
authors.lastname: Kim
authors.affiliation: Department of Surgery, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Seung Ook
authors.initials: SO
authors.lastname: Hwang
authors.affiliation: Department of Surgery, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Jin Gu
authors.initials: JG
authors.lastname: Kang
authors.affiliation: Department of Surgery, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Jino
authors.initials: J
authors.lastname: Baek
authors.affiliation: Department of Radiology, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Hye Jung
authors.initials: HJ
authors.lastname: Kim
authors.affiliation: Department of Pathology, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Ji Young
authors.initials: JY
authors.lastname: Park
authors.affiliation: Department of Pathology, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Ji Yun
authors.initials: JY
authors.lastname: Jeong
authors.affiliation: Dr. Lim's Breast Clinic, Daegu, Korea.
authors.forename: Jae Yang
authors.initials: JY
authors.lastname: Lim
authors.affiliation: Department of Surgery, Breast Cancer Center, Kyungpook National University Medical Center, Daegu, Korea.
authors.forename: Ho Yong
authors.initials: HY
authors.lastname: Park
keywords: Breast; Calcification; Choristoma