ɐ smˈɔːl nˈʌmbɚɹ ʌv fˈæmɪliz hɐvbɪn ɹᵻpˈoːɹɾᵻd ɪnwˌɪtʃ mˌʌltɪpəl ɹˈɛlətˌɪvz hɐvbɪn ɐfˈɛktᵻd baɪ kɔːɹdˈoʊmə.
A small number of families have been reported in which multiple relatives have been affected by chordoma.