title: Sonomammographic characteristics of invasive lobular carcinoma.
abstract: OBJECTIVE
  The objective of our study was to identify characteristic features of invasive lobular carcinoma on mammography and ultrasound examinations.
  
  
  METHODS
  This is a retrospective multicenter study of women with biopsy-proven invasive lobular carcinoma. All patients had undergone diagnostic sonomammography. The imaging findings were identified by experienced breast imagers. Final surgical pathology results were used as the reference standard.
  
  
  RESULTS
  Thirty-two women ranging in age from 42 to 63 years old (mean age, 53 years), All had biopsy-proven invasive lobular carcinomas. Common features on mammogram included dense mass followed by architectural distortion; three cases showed breast asymmetry and one case was reported as normal. On ultrasound, common features included solid mass with spiculated margins, posterior shadowing, and perpendicular to the skin.
  
  
  CONCLUSIONS
  Although no specific features could be linked to invasive lobular carcinoma, care should be directed to subtle signs such as architectural distortion and breast asymmetry in order not to miss any lesions. The combination of mammographic and sonographic helps to decrease the relatively high false negative diagnosis of this type of breast cancer.
authors.affiliation: Diagnostic Radiology Department, Oncology Center, Mansoura University, Mansoura, Egypt ; Diagnostic Radiology Department, Al-Amiri Hospital, Safat, Kuwait.
authors.forename: Osama R
authors.initials: OR
authors.lastname: Kombar
authors.affiliation: Diagnostic Radiology Department, Oncology Center, Mansoura University, Mansoura, Egypt.
authors.forename: Dalia M
authors.initials: DM
authors.lastname: Fahmy
authors.affiliation: Diagnostic Radiology Department, Al-Amiri Hospital, Safat, Kuwait.
authors.forename: Mary V
authors.initials: MV
authors.lastname: Brown
authors.affiliation: Surgical Oncology Department, Oncology Center, Mansoura University, Mansoura, Egypt.
authors.forename: Omar
authors.initials: O
authors.lastname: Farouk
authors.affiliation: Surgical Oncology Department, Oncology Center, Mansoura University, Mansoura, Egypt.
authors.forename: Osama
authors.initials: O
authors.lastname: El-Damshety
keywords: breast; cancer; mammography; ultrasound