title: [Ultrasonographic features of primary non-Hodgkin's breast lymphoma].
abstract: OBJECTIVE
  To summarize the sonographic features of primary non-Hodgkins lymphoma of the breast using the Breast Imaging Reporting and Data System-Ultrasound (BI-RADS-US) and explore the value of ultrasonography in the preoperative diagnosis.
  
  
  METHODS
  The clinical data of 11 patients with primary non-Hodgkins lymphoma of the breast were retrospectively reviewed. BI-RADS-US grading was performed for each lesion.
  
  
  RESULTS
  Totally 13 lesions were detected in 11 patients. Single lesion at one side was detected in 9 patients (81.8%). Circumscribed (n=7, 53.8%) or microlobulated lesions (n=5, 38.5%), parallel orientation (n=10, 76.9%), and oval masses (n=8, 61.5%) were also observed on sonography. The echo pattern of the mass was hypoechoic in 10 lesions (76.9%), hyperechoic in 1 lesion, and complex echoic in 2 lesions. No mass had speculated margins or calcifications. Ipsilateral axillary lymph node involvements were noted in 6 patients.
  
  
  CONCLUSIONS
  Most primary non-Hodgkins lymphomas of the breast present as single hypoechoic masses with circumscribed or microlobulated margins and parallel orientation on sonography. BI-RADS-US, combined with the analyses of multiple signs, is feasible for the pre-surgical diagnosis.
authors.affiliation: Department of Ultrasound, PUMC Hospital, CAMS and PUCM, Beijing 100730, China.
authors.forename: Na
authors.initials: N
authors.lastname: Li
authors.forename: Yu-Xin
authors.initials: YX
authors.lastname: Jiang
authors.forename: Qing
authors.initials: Q
authors.lastname: Dai
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging*; D008875:Middle Aged; D012189:Retrospective Studies; D016217:Ultrasonography, Mammary / Q000379:methods*; D055815:Young Adult