Small Infiltrating Lobular Carcinomas Mimicking Fibroadenoma on Breast MRI

Two Cases of Small Infiltrating Lobular Carcinomas Mimicking Fibroadenoma on Breast MRI
Sachiko Yuen, Takayoshi Uematsu, Masako Kasami
The Breast Journal 13 (6), 616–617
Abstract

The most common features of ILC on MRI are an irregular/spiculated inhomogeneous mass with or without enhancing surrounding small foci, multiple small enhancing foci with interconnecting enhancing strands, and architectural distortion; however, the MR appearances of our cases well reflected one of the intrinsic growth patterns of ILC. Although nonenhancing septation is one of the diagnostic features of fibroadenoma, we should notice that ILC can demonstrate nonenhancing septa on MRI.