Doctors had a huge shock after conducting a medical examination on an 18-year-old teenager.
According to Wittyfeed, Olivia Key was leading a normal life spending time play sports and hanging out with friends.
One day however she felt a crippling pain in her stomach. Doctors thought she was pregnant.
The Daily Mail reported that Miss Key first noticed a small lump on her stomach while on a family holiday in 2013.
But it wasn't until last November that she went to the hospital for a check after her abdomen doubled in size. The pain also caused her to have difficulty walking.
However, they soon discovered that the pain was caused by a big tumour in her left ovary which was engulfed by a massive cyst the size of a watermelon.
They operated on her to remove the tumour, and her doctor told her she was lucky the cyst had not started to leak or break, so the tumour was confined to her ovary.
Doctors removed her left ovary and fallopian tube, but thankfully, Olivia's fertility was unaffected by what happened.
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