-PATHOLOGICAL DIAGNOSIS-Breast, right, breast conserving surgery:Invasive lobular carcinoma nuclear grade 2, histologic grade 2 (see note).1.Tumor size: 5.5¡¿5¡¿1.5cm2.Lobular carcinoma in situ: Extensive 40%.3.Lymphovascular invasion: Not identified.4.Surgical resection margin: Free of tumor(safety margin: 0.2cm from the closet anterior resection margin).5.Lymph node: Metastasis to 1 out of 30 lymph nodes (1/30)[ right axillary lymph node: 0/27, right sentinel lymph node(frozen specimen "No1") 1/3]6. Microcalcification: present7.Satellite noudule: Invasive lobular carcinoma, nuclear grade 2, histologic grade 2, right inner upper, 1.5¡¿0.7cm
-NOTE-The results of immunohistochemical stains:1) ER : 3/3 ¡¿ 4/4=12/122) PR : 2/3 ¡¿ 2/4=4/123) C-erbB-2 : 0 (negative)4) Ki-67 : 10~15%5) CK : positive6) E-cadherin : negative