A chromosome No. 2 abnormality in a child with a few congenital defects*

Abstract
An abnormal chromosome No. 2 was found in the case of a child with an imperforate anus, a recto-vaginal fistula, unilateral atresia of the inner canal and deformity of the external ear. G-banding studies revealed an insertion of a segment of the short arm into the long arm in 1 of the chromosomes No. 2 of the proband, the apparent result of a de novo phenomenon of chromosome rearrangement.