3.4 Invasive Lobular Carcinoma
The term：Often accompanied by infiltration of lobular carcinoma in situ，lack of normal cell adhesion.It consists of non-adherent cells distributed in a single line in the fibrous stroma.
Clinical manifestation：
●Mostly found by mammography（85%），the clinical touch does not reach the mass
●Breast tissue thickens and the mass lacks clear boundaries
Population distribution characteristics：
●Age 51～61 years old
●The second common type of invasive breast cancer
Mammography：
●50%～68%is a star-shaped mass
●16%～25%is isolated structural distortion
●3%～19%are focal or progressive asymmetry，often only seen in a single position
●Calcification is rare
MR：
●More manifestations of irregular，burr-like masses
●T2W1 signal can be lower
●Enhanced scanning enhancement is not obvious(https://www.daowen.com)
●Hemodynamic changes：outflow type＞platform type＞continuous type
Image inspection recommendation：
●Best image inspection method：MR
Case 1
Fig.（a-d）DR Female 51 years old，medical examination：right breast invasive lobular carcinoma
Case 2
Fig.（a-h）MR Female，67 years old，found right breast mass for 5 years.Pathology：right breast invasive lobular carcinoma
Case 3
Fig.（a-l）DR+MR Female，59 years old，found the right breast mass for more than one month.Pathology：right breast invasive lobular carcinoma.