NCIt synonyms : Infiltrating Medullary Carcinoma of the Breast; Medullary Breast Carcinoma with Lymphoid Stroma; Invasive Medullary Breast Carcinoma; Invasive Medullary Carcinoma of the Breast; Medullary Carcinoma of the Breast; Invasive Medullary Carcinoma of Breast; Medullary Carcinoma of Breast; Infiltrating Medullary Carcinoma of Breast;
NCIt related terms : medullary breast carcinoma; Medullary Breast Cancer; Medullary carcinoma with lymphoid stroma;
NCIt definition : An infiltrating breast carcinoma with a relatively favorable prognosis. It is an uncommon
carcinoma, accounting for less than 1% of all infiltrating breast carcinomas. It is
well circumscribed, with soft cut surface and often of considerable size. Microscopically,
the predominant growth pattern is syncytial with broad anastomosing bands or sheets
of malignant cells. The malignant cells are round with abundant cytoplasm and vesicular
nuclei. The sheets of malignant cells are associated with a marked lymphoplasmacytic
infiltrate. Glandular or tubular structures are absent.;
Alternative definition : NCI-GLOSS: A rare type of breast cancer that often can be treated successfully. It
is marked by lymphocytes (a type of white blood cell) in and around the tumor that
can be seen when viewed under a microscope.;