Anencephaly - Absence of a major portion of the brain, skull, and scalp that occurs during embryonic development
Anencephaly - Absence of a major portion of the brain, skull, and scalp that occurs during embryonic development

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Anencephaly - Wikipedia

I don't recommend clicking on this article and looking at the photos because I was really not ready for that
Thanks for the warning. I’ve heard and can confirm with anecdotal evidence that if you play a fast paced game of Tetris as soon as you see some cosmic horror internet shit then those unseeable eye worms are less likely to linger.