Monarch Disease Ontology term MONDO_0012165 (BNAR syndrome) is a very rare multiple congenital anomaly syndrome characterized by a bifid nose (with bulbous nasal tip but not associated with hypertelorism) with or without the presence of anal defects (i.e. anteriorly placed anus, rectal stenosis or atresia) and renal dysplasia (unilateral or bilateral renal agenesis) and without intellectual disability. BNAR syndrome is phenotypically related to Fraser syndrome and oculotrichoanal syndrome. Also known as: bifid nose with or without anorectal and renal anomalies.