Related Experiment Video
Updated: Jul 9, 2026

Methods for Studying Uterine Contributions to Pregnancy Establishment in an Ovariectomized Mouse Model
Published on: April 7, 2023
[A pregnancy of 10-years duration]
1Forum for universitetshistorie Universitetet i Oslo Postboks 1008 Blindern 0315 Oslo. e.h.bjerke@ffu.uio.no
Abstract:
In January 1813 the peasant woman Randi Jonsdatter from Kvikne in Hedmark had been pregnant for 10 years. One day she slipped in her cattle-shed, and soon after "gave birth" to the remains of a decomposed stone child (lithopaedion) through an incision above her navel. The woman, who was about 50 years old, lived for many years after the "birth". This is the earliest known Norwegian case of a lithopaedion, a dead calcified fetus from an extra uterine pregnancy. The case is documented in a letter written only three months after the event. This letter is now archived in The Norwegian National Library's Manuscript Collection. The case was also published by the physician Christian Stengel at the Røros mines, in the medical periodical EYR: in 1827. Stone children occur very rarely. Only two other cases, from 1858 and 1885, are known in Norway.
Related Concept Videos
Ovarian Cycle
Oogenesis
Oogenesis
Each primary oocyte is surrounded by a layer of pre-granulosa cells, forming what is known...
Longitudinal Research
Proliferative Phase
Notably, the stratum basale, the basal layer of the endometrium, including the basal parts of the uterine glands, remains unaffected by menstruation. Stem cells in this layer undergo mitosis, regenerating the stratum functionalis and thickening the...
Infertility in Females
Endometriosis, a condition characterized by abnormal growth of endometrial...
