In July, 2011, a 52-year-old woman presented to our psychiatric outpatient clinic in The Hague with a life-long history of seeing people's faces change into dragon-like faces and hallucinating similar faces many times a day. She could perceive and recognise actual faces, but after several minutes they turned black, grew long, pointy ears and a protruding snout, and displayed a reptiloid skin and huge eyes in bright yellow, green, blue, or red.
She saw similar dragon-like faces drifting towards her many times a day from the walls, electrical sockets, or the computer screen, in both the presence and absence of face-like patterns, and at night she saw many dragon-like faces in the dark.
The woman suffered from prosopometamorphopsia, a psychiatric disorder that causes faces to appear distorted. Even within the context of the condition, the woman's case was rare in the specificity of her hallucinations.
After an analysis of tumor tissue, doctors determined the child had a craniopharyngioma, a rare brain tumor that can grow to be larger than a golf ball, but does not spread.
Researchers had always suspected that these tumors form from the same cells involved in making teeth, but until now, doctors had never seen actual teeth in these tumors. [...] "It's not every day you see teeth in any type of tumor in the brain. In a craniopharyngioma, it's unheard of," Beaty said.
Craniopharyngiomas commonly contain calcium deposits, "but when we pulled out a full tooth... I think that's something slightly different," Beaty told Live Science.
Teeth have been found in people's brains before, but only in tumors known as teratomas, which are unique among tumors because they contain all three of the tissue types found in an early-stage human embryo, Beaty said. In contrast, craniopharyngiomas have only one layer of tissue.
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"Wait", you're thinking, "People still use Flickr?" Yeah, I was surprised too.