NELL1 and invasive ductal breast carcinoma: THSD7A was found in tumor and follicular dendritic cells of tumor-infiltrated lymph nodes in separate cases of gallbladder adeno-neuroendocrine carcinoma and endometrial carcinoma (88, 89) Up to 33% of NELL1-associated MN were secondary to malignancy with NELL1 tumor expression demonstrated in 2 cases (invasive ductal carcinoma of the breast and follicular lymphoma) (90).