[Diagnosis of lobular neoplasia in situ on percutaneous breast biopsy: surgical indication].
The arrival of modern imagery techniques has generated an increase in diagnosed lobular intra epithelial neoplasia (LIN) cases. The aim of this research is to define standards to assess the reliability of surgical action currently advised after diagnosing LIN on percutaneous breast biopsy.


METHODS
This retrospective research was conducted from January 1999 to December 2008 on 24 patients. After performing of mammotome procedure on micocalcifications, each diagnosed LIN case was reviewed by two anatomopathologists. The extent and type of LIN (1 and 2) tumor was defined. A further analysis of the surgically removed material was carried out.


RESULTS
The study has indicated three cases of underestimation (12.5%). It was CCIS. The analysis of mammotome procedure shown that the extent and type of LIN were inconstant.


CONCLUSIONS
The rate of underestimation is low but it appears that the extend and type of LIN's tumor on mammotome procedure is not available for the surgical decision.
Département de gynécologie, CHR Porte-Madeleine, 1 rue Porte-Madeleine, Orléans, France. noemie.ehrhart@gmail.com
N
N
Ehrhart
C
C
Bonneau
E
E
Champeaux
P
P
Michenet
D000368:Aged; D001706:Biopsy; D001943:Breast Neoplasms / Q000473:pathology* / Q000601:surgery; D018275:Carcinoma, Lobular / Q000473:pathology* / Q000601:surgery; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D008875:Middle Aged; D012189:Retrospective Studies