a congenital absence of eyelids (partial or complete)

the congenital absence of pigmentation in the eyes and skin and hair

a defect in brain development resulting in small or missing brain hemispheres

congenital absence of the uterus

genetic inability to distinguish differences in hue

a congenital abnormality in males in which the urethra is on the upper surface of the penis

a congenital defect in which the top of the head is depressed (concave instead of convex)

a congenital defect in which one or more toes or fingers are abnormally positioned

a congenital disorder characterized by an abnormally large tongue; often seen in cases of Down's syndrome

a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation

a congenital abnormality of the skull; the top of the skull assumes a cone shape

a congenital cleft in the middle of the upper lip

a congenital fissure of the hard palate

congenital absence of an arm or leg

congenital absence of part of an arm or leg

protrusion of brain tissue through a congenital fissure in the skull

a congenital anomaly of the central nervous system in which a sac protruding from the brain or the spinal meninges contains cerebrospinal fluid (but no nerve tissue)

a congenital defect of the central nervous system in which a sac containing part of the spinal cord and its meninges protrude through a gap in the vertebral column; frequently accompanied by hydrocephalus and mental retardation

congenital malformation of the skull in which the main axis of the skull is oblique

congenital defect of having one or more extra chromosomes in somatic cells

congenital condition in which external genitalia and internal sex organs have both male and female characteristics

congenital condition in which a person has external genitalia of one sex and internal sex organs of the other sex

congenital malformation of the skull which is long and narrow; frequently accompanied by mental retardation

a birth defect involving the heart

a not uncommon congenital defect in which a vertebra is malformed; unless several vertebrae are affected or there is myelomeningocele there are few symptoms; can be diagnosed by amniocentesis

any of several congenital disorders marked by degeneration of the cerebellum and spinal cord resulting in spasticity and ataxia

birth defect characterized by the presence of more than the normal number of fingers or toes

birth defect in which there is partial or total webbing connecting two or more fingers or toes

a congenital anomaly in which the mucous membrane under the tongue is too short limiting the mobility of the tongue

congenital absence of fingers and/or toes

a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision)

complete color blindness; colors can be differentiated only on the basis of brightness

an abnormality of development in which the upper part of an arm or leg is missing so the hands or feet are attached to the body like stumps; rare condition that results from taking thalidomide during pregnancy

a congenital abnormality in the septum between the left and right sides of the heart

a congenital heart defect producing cyanosis; characterized by four symptoms: pulmonary stenosis and ventricular septal defect and malposition of the aorta over both ventricles and hypertrophy of the right ventricle