title: Primary neuroendocrine tumor of the breast: imaging features.
abstract: Focal neuroendocrine differentiation can be found in diverse histological types of breast tumors. However, the term, neuroendocrine breast tumor, indicates the diffuse expression of neuroendocrine markers in more than 50% of the tumor cell population. The imaging features of neuroendocrine breast tumor have not been accurately described due to extreme rarity of this tumor type. We present a case of a pathologically confirmed, primary neuroendocrine breast tumor in a 42-year-old woman, with imaging findings difficult to be differentiated from that of invasive ductal carcinoma.
authors.affiliation: Department of Clinical Pathology, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu 480-717, Korea.
authors.forename: Eun Deok
authors.initials: ED
authors.lastname: Chang
authors.forename: Min Kyun
authors.initials: MK
authors.lastname: Kim
authors.forename: Jeong Soo
authors.initials: JS
authors.lastname: Kim
authors.forename: In Yong
authors.initials: IY
authors.lastname: Whang
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000175:diagnosis*; D018270:Carcinoma, Ductal, Breast / Q000175:diagnosis*; D018278:Carcinoma, Neuroendocrine / Q000175:diagnosis*; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008327:Mammography; D016217:Ultrasonography, Mammary
keywords: Breast; Magnetic resonance; Mammography; Neuroendocrine tumor; Sonography