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Congenital hypothyroidism ( CH) is thyroid hormone deficiency present at birth. If untreated for several months after birth, severe congenital hypothyroidism can lead to growth failure and permanent intellectual disability. Infants born with congenital hypothyroidism may show no effects, or may display mild effects that often go unrecognized as ...
Fetal alcohol spectrum disorders encompass a range of physical and neurodevelopmental problems which can result from prenatal alcohol exposure. Diagnosis is based on the signs and symptoms in the person and evidence of alcohol use. [ 1] These diagnoses of fetal alcohol spectrum disorders are currently recognized:
The fetus is at greatest risk of contracting syphilis when the mother is in the early stages of infection, but the disease can be passed at any point during pregnancy, even during delivery. An affected child can be treated using antibiotics much like an adult; however, any developmental symptoms are likely to be permanent. [32]
During continued fetal development, the early body systems, and structures that were established in the embryonic stage continue to develop. Sex organs begin to appear during the third month of gestation. The fetus continues to grow in both weight and length, although the majority of the physical growth occurs in the last weeks of pregnancy.
Embryonic development in the human, covers the first eight weeks of development; at the beginning of the ninth week the embryo is termed a fetus. The eight weeks have 23 stages. Human embryology is the study of this development during the first eight weeks after fertilization. The normal period of gestation (pregnancy) is about nine months or ...
Hypotonia. Hypotonia is a state of low muscle tone [ 1] (the amount of tension or resistance to stretch in a muscle), often involving reduced muscle strength. Hypotonia is not a specific medical disorder, but a potential manifestation of many different diseases and disorders that affect motor nerve control by the brain or muscle strength.
Fetus in fetu (or foetus in foetu) is a rare developmental abnormality in which a mass of tissue resembling a fetus forms inside the body of its twin. An early example of the phenomenon was described in 1808 by George William Young. [ 1] There are two hypotheses for the origin of a "fetus in fetu". One hypothesis is that the mass begins as a ...
Choroid plexus cysts ( CPCs) are cysts that occur within choroid plexus of the brain. They are the most common type of intraventricular cyst, [ 1] occurring in 1% of all pregnancies. [ 2] It is believed that many adults have one or more tiny CPCs. [ 3] The fetal brain may create these cysts as a normal part of development.