Developmental delays (for example, holding up the head, sitting, standing, walking).The signs often show up during the first two years of life, but mild cases are sometimes not noticed for many years. It depends on how much of the corpus callosum is missing and the presence of any other associated disorders. What are the symptoms of a missing corpus callosum? Share on Pinterest The corpus callosum (red part of the brain) is the connective pathway that connects the left to the right side of the brain. Cast and crew from the film Mad Max: Fury Road and celebrities walked the red carpet at Event Cinemas. Infection or injury to a fetus during the 12th to 24th week of pregnancy. Pictured: Quentin Kenihan Companion (Corpus Colossus).Scientists don’t fully understand the causes of ACC, but it has been associated with: What causes agenesis of the corpus callosum? But it is still rare, affecting only 0.05 to 0.07% of the population. How common is agenesis of the corpus callosum?ĪCC is the most common congenital defect of the brain. Schizencephaly (slits in the hemispheres of the brain).Holoprosencephaly (failure of the brain to split into two hemispheres).Andermann syndrome (damage to the nerves that control the muscles).Is ACC associated with other disorders?Īn absent corpus callosum can occur by itself but is sometimes associated with other congenital disorders (defects present at birth), such as: The corpus callosum is a large, C-shaped nerve fiber bundle found beneath the cerebral cortex.It stretches across the midline of the brain, connecting the. Others may have severe impairments or seizures. Some experience mild social, emotional or mental effects. It depends on how much of the corpus callosum is missing and whether there are any other problems with the brain. The effects of ACC can be subtle or severe. How does an absent corpus callosum affect a person?

It allows both sides of the brain to communicate with each other.

The corpus callosum is a thick bundle of nerve fibers that connects the right and left hemispheres (halves) of the brain. The corpus callosum transfers motor, sensory, and cognitive information between the brain hemispheres. It connects the left and right sides of the brain, allowing for communication between both hemispheres. A person with ACC has a missing or partially missing corpus callosum. The corpus callosum is a thick band of nerve fibers that divides the cerebral cortex lobes into left and right hemispheres. Agenesis of the corpus callosum (ACC) is a birth defect that affects the brain.

Corpus colossus