Abnormal nostril morphology Enlarged naris 2009-05-10T10:30:20Z Increased diameter of nostril Large nares Broad nostril Increased diameter of nares UMLS:C0426440 Increased width of nares The nostrils or nares are typically symmetric, wide openings. They should be assessed with the face at rest to avoid the effect of flared alae nasi that occurs with distress. Note that the nares change with age, from rounded in infancy to elongated at a later age. SNOMEDCT_US:399353008 Increased aperture of the nostril. Enlarged nares Enlarged nostril Dilated nostril Wide nostril Wide nares Naris, enlarged Naris, broad Dilated nares HP:0009931