6q Summary Deletion of the long arm of chromosome 6 with delayed mental development and variable multiple abnormalities, mainly microcephaly, orofacial anomalies, short neck, cardiovascular defects, abnormal dermatoglyphics, hand deformities, and other defects. Microcephaly, brachycephaly, dolichocephaly, round coarse face, facial asymmetry, and micrognathia. Umbilical and inguinal hernia and single umbilical artery. Pes planus, equivarus and equinovalgus occur in some cases.
Dermatoglyphic findings consist mainly of single palmar creases.
Syndactyly of the fingers and toes and clubfoot. Dermatoglyphic findings consist mainly of abnormal palmar creases. Stiff joints or joint laxity. Fingernails on dorsal and volar aspects of fifth finger.