“Hidden Mother” was a 19th century portrait trend where mothers, who were basically dressed a “ghost,” would hold their young children still while being photographed. The end result was, well… haunting and creepy.
A popular dime museum attraction from 1891 to 1895 was Bella (or Belle) Carter from Blue Bank, Kentucky, called "The Mare Woman". Born normal, Bella was five years old when a mole in the center of her back began to sprout hair. Carefully cultivated, this hair grew to more than a foot in length and was as silky and shiny as the hair on Bella's head.
This particular specimen belongs to UCL Pathology Collections, and is currently on display in the Foreign Bodies exhibition. The anonymous woman patient underwent a hysterectomy most likely sometime in the early 20th century, in order to remove the sizable uterine fibroid, which can be seen on the right side of the image. However, on closer examination of the image, we see on the left side a preserved fetus, frozen in development, somewhere between 8-11 weeks.