HRAS and breast neoplasm: Conversely, the relevance of the MMTV-H-Ras mouse model for the study of adenomyoepitheliomas remains to be fully determined, given that these animals express wild-type rather than mutant Hras and have histologic features that appear to be distinct from those of human adenomyoepitheliomas37, highlighting that caution should be exercised in the translation of the genotypic and phenotypic characteristics of mouse mammary gland tumors to human breast neoplasms.