Definitions

Breast
ICD-O-3 topography code:	C50
ICD10:	C50

Atypical medullary carcinoma belongs to the group of 'Carcinomas with medullary features'.

The terms ?atypical medullary carcinoma? and ?carcinoma with medullary features? have been proposed for tumours that do not fulfil all the morphological criteria necessary for the diagnosis of medullary breast carcinoma.

See Carcinomas with medullary features for detailed discussion and images.