title: Ultrasonographic features of benign adenomyoepithelioma of the breast.
abstract: OBJECTIVE
  The purpose of this study was to evaluate the ultrasonographic features of benign adenomyoepithelioma of the breast.
  
  
  METHODS
  Between 2005 and 2009, five patients had histologically confirmed adenomyoepithelioma of the breast. We retrospectively evaluated the ultrasonographic findings of the tumors in correlation with the pathology, and reviewed medical records.
  
  
  RESULTS
  The clinical manifestations included a palpable mass in three patients, while mammographic screening helped detect abnormalities in two patients. Ultrasonograms showed masses with an oval (n = 3) or irregular (n = 2) shape, with uncircumscribed (n = 4) or relatively well-circumscribed (n = 1) margins, as well as with a hypoechoic (n = 3) or a complex echoic (n = 2) internal echo texture. Three patients had focal ductectasia adjacent to the mass. The ultrasonographic assessments were classified as Breast Imaging Reporting and Data System (BI-RADS) category 4A, with low suspicion of malignancy in two cases, and as category 4B, with intermediate suspicion of malignancy in three cases. The pathology revealed benign adenomyoepithelioma in all patients.
  
  
  CONCLUSIONS
  Benign adenomyoepitheliomas appear as solid or complex echoic masses with suspicious malignant ultrasonographic features, which may be associated with adjacent ductectasia. Although adenomyoepithelioma is a rare breast tumor, awareness of its sonographic features will be helpful for the differential diagnosis from other tumors.
authors.affiliation: Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
authors.forename: Ji Hye
authors.initials: JH
authors.lastname: Lee
authors.forename: Sung Hun
authors.initials: SH
authors.lastname: Kim
authors.forename: Bong Joo
authors.initials: BJ
authors.lastname: Kang
authors.forename: Ah Won
authors.initials: AW
authors.lastname: Lee
authors.forename: Byung Joo
authors.initials: BJ
authors.lastname: Song
mesh_terms: D055331:Adenomyoepithelioma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008327:Mammography; D008875:Middle Aged; D009367:Neoplasm Staging; D049268:Positron-Emission Tomography; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016217:Ultrasonography, Mammary
references.citation: Breast Cancer. 2007;14(4):429-33
references.pmid: 17986811
references.citation: Breast. 2004 Aug;13(4):356-8
references.pmid: 15325675
references.citation: Am J Surg Pathol. 1991 Jun;15(6):554-68
references.pmid: 1709559
references.citation: Breast J. 2006 Jul-Aug;12(4):386
references.pmid: 16848857
references.citation: Hum Pathol. 1987 Dec;18(12):1232-7
references.pmid: 2824328
references.citation: Acta Radiol. 2007 Feb;48(1):27-9
references.pmid: 17325921
references.citation: J Ultrasound Med. 2001 Sep;20(9):1021-4
references.pmid: 11549151
references.citation: Breast J. 2007 Mar-Apr;13(2):203-4
references.pmid: 17319866
references.citation: AJR Am J Roentgenol. 2003 Mar;180(3):799-803
references.pmid: 12591699
references.citation: Acta Cytol. 2000 May-Jun;44(3):488-90
references.pmid: 10834021
references.citation: Am J Surg Pathol. 1992 Sep;16(9):868-76
references.pmid: 1384377
references.citation: Breast J. 2002 Nov-Dec;8(6):383-4
references.pmid: 12390363
references.citation: Arch Pathol Lab Med. 2000 Apr;124(4):632-6
references.pmid: 10747327
references.citation: Curr Top Pathol. 1970;53:161-220
references.pmid: 4323195