def var_is_pathogenic(variant_data):
    """Check if variant is listed as pathogenic in ClinVar
    :param variant_data: A GeminiRow for a single variant.
    :type variant_data: GeminiRow.
    :returns:  bool -- True or False.
    """

    if variant_data.INFO.get('clinvar_sig') is not None:
        if "pathogenic" in variant_data.INFO.get('clinvar_sig'):
            return True
        else:
            return False
    else:
        return False