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Anencephaly is the absence of a major portion of the brain, skull, and scalp that occurs during embryonic development. [1] It is a cephalic disorder that results from a neural tube defect that occurs when the rostral (head) end of the neural tube fails to close, usually between the 23rd and 26th day following conception. [2]
There are typically four classes (or types) of PFFD, ranging from class A to class D, as detailed by Aitken. [4] [5]Type A — The femur bone is slightly shorter on the proximal end (near the hip), and the femoral head (the ball of the thigh bone that goes into the hip socket) may not be solid enough to be seen on X-rays at birth, but later hardens (ossifies).
The fetus is said to have acrania if it meets the following criteria: the fetus should have a perfectly normal facial bone, a normal cervical column but without the fetal skull and a volume of brain tissue equivalent to at least one-third of the normal brain size. [2]
A 7-month-old baby born in New Jersey is being considered the first to ever survive his rare condition past birth. The child, named Lucas, was diagnosed with exencephaly, a rare condition in which ...
Jaxon Emmett Buell (August 27, 2014 – April 1, 2020) was an American child known for being born missing about 80% of his brain due to anencephaly. [1] He surpassed doctors' expectations, who predicted he would not live to see his first birthday. He actually lived over five-and-a-half years.
A baby hand affected by amniotic band syndrome. Congenital amputation is birth without a limb or limbs, or without a part of a limb or limbs.. It is known to be caused by blood clots forming in the fetus while in utero (vascular insult) and from amniotic band syndrome: fibrous bands of the amnion that constrict fetal limbs to such an extent that they fail to form or actually fall off due to ...
IV) partially fused femur, fused fibula V) partially fused femur VI) fused femur, fused tibia VII) fused femur, tibia absent. Sirenomelia is classified by the skeletal structure of the lower limb, ranging from class I, where all bones are present and only the soft tissues are fused, to class VII where the only bone present is a fused femur. [1]
Despite the reduced brain matter, the man lived a relatively normal life; he was a married civil servant with two kids. He also scored an IQ of 75 which is considered low but not disabled.