Carcinoma, Medullary

MESHD018276

A carcinoma composed mainly of epithelial elements with little or no stroma. Medullary carcinomas of the breast constitute 5%-7% of all mammary carcinomas; medullary carcinomas of the thyroid comprise 3%-10% of all thyroid malignancies. (From Dorland, 27th ed; DeVita Jr et al., Cancer: Principles and Practice of Oncology, 3d ed, p1141; Segen, Dictionary of Modern Medicine, 1992)