All of the following are true about cleft lip and palate except:

- Incidence of cleft lip & palate is 1:600 live bihs - Incidence of isolated clef palate is 1:1000 live bihs Distribution - In unilateral cleft lip the deformity affects the left side in 60% of cases Typical distribution of Cleft types - Cleft lip alone 15% -Cleft lip & palate: 45% (MC) -Isolated cleft palate: 40% Note: - Isolated cleft palate can be diagnosed by ultrasound after 18 weeks gestation Associated Syndromes: - Although most clefts of the lip and palate occur as an isolated deformity, Pierre Robin Sequence remains the most common syndrome. - Other associated syndromes Stickler's (ophthalmic and musculoskeletal abnormalities) Sphrintzen's (cardiac anomalies), Down's, Ape's and Treacher-Collins' syndromes