The authors report three cases of unilateral soft palate hypoplasia without any other major malformations.
Case 1: A 9-year-old boy had a left velar defect, which consisted of unilateral hypoplasia of the levator palatini, the tensor palatini, palatoglossus, and the palatopharyngeus muscles. He manifested no signs of velopharyngeal incompetence before the age of 7 years. However, mild rhinolalia appeared at 7 years old. No articulatory disorders were found.
Case 2: A 3-year-old girl had similar findings on the left side and a hamartoma at the base of the tongue. Velopharyngeal incompetence had not been manifested yet. She is under follow-up.
Case 3: A 9-year-old girl had similar findings on the right side. No velopharyngeal incompetence has been manifested.