lobular carcinoma


lob·u·lar car·ci·no·ma

a form of adenocarcinoma, especially of the breast, where lobular carcinoma is less common than ductal carcinoma and usually is composed of small cells.

lobular carcinoma

Oncology A major morphologic form of breast carcinoma which, like ductal breast carcinoma, arises in the terminal duct/lobular unit; the division is of morphologic, but no clinical, significance. Cf Ductal carcinoma, Medullary carcinoma.