mental retardation , short stature , microcephaly , hypertelorism , epicanthus , ptosis , short , broadbased nose , carp mouth , abnormalities of teeth , microretrognathy , big , protruding and low set ears , short neck , pterygium colli , broad chest , incurved fifth fingers , muscular hypotonia and low birth wieght establish a clinical diagnosis of the 18p-syndrome in many instances even before the result of chromosomal analyis is known .
C0226896
mouth
C0040427
abnormalities of teeth