Any functional anomaly of the breast or one of its parts.
http://purl.obolibrary.org/obo/UPHENO_0082877
http://purl.obolibrary.org/obo/HP_0031094
http://purl.obolibrary.org/obo/UPHENO_0003013
http://purl.obolibrary.org/obo/UPHENO_0082875