The differences between spina bifida occulta, spina bifida with meningocele, and spina bifida with myelomeningocele.
In the development of the embryo, the neural tube closes around 28 days post-fertilization.
Oftentimes, the woman does not even know she’s pregnant at that point. So much happens in early development, so much can go wrong…many times the egg is fertilized, but has such faulty genes that it terminates itself even before the menstrual cycle is delayed. And many times there are multiple eggs fertilized, and two eggs trying to develop in the uterus, but one of them is terminated by the body long before the “twins” would be visible on an ultrasound.

The differences between spina bifida occulta, spina bifida with meningocele, and spina bifida with myelomeningocele.

In the development of the embryo, the neural tube closes around 28 days post-fertilization.

Oftentimes, the woman does not even know she’s pregnant at that point. So much happens in early development, so much can go wrong…many times the egg is fertilized, but has such faulty genes that it terminates itself even before the menstrual cycle is delayed. And many times there are multiple eggs fertilized, and two eggs trying to develop in the uterus, but one of them is terminated by the body long before the “twins” would be visible on an ultrasound.

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    Occulta is the most benign form, though. Many people who have it manifest no phenotype. It’s when the surface ectoderm...
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    I once had patient with myelomenigocele. She has paralized below her waist, and her legs were atrophied. They performed...
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    Gestation fascinates me. i’m amazed any of us make it out of our mother’s womb alive!! so much room for error…so many...
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