On my father's side, his mother and her sister never had b/c, but his mother's mother, my great grandma had very late age b/c. Her mother, which would be my great great grandma had early onset b/c. My dad has two brothers and no male b/c. My great grandma 's(who had late age b/c) sister did not have b/c. Since I have no aunts on this side, am I at great risk? My great grandma's sister had a daughter who has never had b/c either nor her daughter. One of my dad's brother's did have late age melanoma, though it was secondary to lymphoma. Should we consider testing?