The patient: A 16-year-old boy in India
The symptoms: The teen developed swelling on his left upper eyelid that persisted for a few months but was painless. However, he later noticed two sharp, white projections poking out from the skin above his eye.
About a month after these projections appeared, he went to a hospital.
What happened next: Doctors examined the teen's eyelid, noting that the spikes had a "fairly smooth surface and were hard on palpation," said Dr. Meghana Tanwar, a medical consultant at the Aravind Eye Hospital in India who co-authored a report of the case. The texture and color of the projections suggested they might be teeth, she told Live Science in an email.
Initially, the doctors thought the point...
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