sentences:  In the skeletal system, ribs may be absent, and hemivertebrae, syndactyly (fusion of fingers together), and clinodactyly (curvature of the fifth finger) may be present.In the GI and genitourinary systems, anal atresia, hypospadia (misplaced urethra), and hydronephrosis may exist.Adrenal hypoplasia and growth hormone deficiency are associated endocrine consequences of Ritscher-Schinzel syndrome.