This type of birth defect is called microtia; it occurs in such disorders as hemifacial microsomia and Treacher Collins syndrome.
Diagnosis of microtia is made by the obstetrician or pediatrician at the time of the child's birth.
The term you are probably looking for is "congenital defect."
it is a type of neural tube defect or known as a birth defect
teratogens
no cause is known for it, though it is presumed to be a birth defect known as a localized Dysmelia. -from wikipedia.
When it comes to genetic metabolic disorders early detection is the prevention of disease manifestation. You can not prevent a genetic disorder from occurring. Screening at birth by painless urine test can prevent the disease from harming the baby. Metabolic disorders are due to a defect in metabolic pathway as the enzyme catalyzing is defective due to a defect in a gene coding it. This situation can not be corrected but can be effectively managed by diet modifications and special foods. Genetic metabolic disorders are not preventable as they are defective gene that are passed from the parents to their offspring, that why screening at birth for these disorders become important. The parents just carry these genes without showing any signs of the disorders which then becomes evident in the baby after birth. Screening through urine sample for more than 100 metabolic disorders is gaining popularity, which is baby friendly rather than pricking them at the heel. Management of these disorders after screening will help in preventing any irreversible damage to the baby. After about 6 months of my baby's birth, my baby started becoming lethargic and less enthusiastic about feeding or even playing. She only slept all the times. Initially, I did not get too concerned about it, as most babies sleep all the time, but then when I showed her to the ped., he immediately asked me to do a metabolic urine test for 100 disorders, which showed positive and then only after modified diet, did my baby start to thrive. If I had known of this test before and that it could be done at birth, I would have not lost so much of time. While my baby is doing well now, I will always regret the fact that I did not do the urine test at birth. While metabolic disorders are not preventible, doing the simple urine test at birth can save a lot of time and pain for the health of the child.
A modular or medullary sponge kidney is a congenital birth defect of the tiny tubes inside the kidneys. This condition is known as CacchiÐRicci disease.
a congenital defect is one that a person is born with.
Congenital hydrocephalus is a brain disorder, link below.
The chromosomal defect you are describing is known as a translocation. In a translocation, a segment of one chromosome breaks off and is reattached to a different chromosome, which can lead to genetic imbalances and various genetic disorders. This type of defect can occur in both somatic cells and germ cells and is often associated with certain cancers and congenital conditions.
There are four different types of Spina Bifida, but no stages. It is a birth defect, and the damage to the spine and nerves results in the disability known as Spina Bifida.
congenital osteoarthritis