BRCA1 and cancer: In BRCA1-2 carriers MVD ranged from 5 to 53, with a median of 25 microvessels/mm2; in BRCAX cancers MVD ranged from 5 to 39, with a median of 18 microvessels/mm2; in all familial tumors (BRCA1-2 and BRCAX) MVD ranged from 5 to 53, with a median of 20 microvessels/mm2, and in sporadic tumors MVD ranged from 5 to 35, with a median of 16 microvessels/mm2.