In 2010–2011, a burial in Lisbon brought an interesting piece of information. A middle-aged woman from the 15th century had a tumor near her pelvis, and it had grown human teeth.
Researchers were working at the Church and Convent of Carmo when they happened upon the cyst. Known as a teratoma, this common ovarian tumor forms when cells earmarked to become eggs go crazy.
Instead of forming eggs, the cells build human parts such as hair, bones, and teeth.
In this case, there were five recognizable molars and an indication of bones. The tumor was big, measuring 1.7 in wide. But it is impossible to say if the woman was affected by the size.
Some modern cases give no symptoms, while others cause severe pain. Since many teratomas develop only as tissue balls, the toothy tumor is a valuable chance to study the more bizarre ancient cases.
(Source: Listverse)
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