CD1d- and PJA2-related immune microenvironment differs between invasive breast carcinomas with and without a micropapillary feature

Background Invasive micropapillary carcinoma (IMPC) of the breast is characterized by its unique morphology and frequent nodal metastasis. However, the mechanism for development of this unique subtype has not been clearly elucidated. The aim of this study was to obtain a better understanding of IMPC.