Familial atypical mole and melanoma (FAM-M) syndrome is an
inherited tendency to develop melanoma.
FAM-M syndrome is present when:
- Melanoma has been diagnosed in a family member,
including grandparents, aunts, uncles, and cousins.
- Several family
members have large numbers of moles (often more than 50), some of which may be
abnormal, or atypical, moles.