Aubrey speaks of a woman aged seventy years unconsciously carrying an extrauterine fetus for many years, which was only discovered postmortem.

She had ceased to menstruate at forty and had borne a child at twenty-seven.

Watkins speaks of a fetus being retained forty-three years; James, others for twenty-five, thirty, forty-six, and fifty years; Murfee, fifty-five years; Cunningham, forty years; Johnson, forty-four years; Josephi, fifteen years (in the urinary bladder); Craddock, twenty-two years, and da Costa Simoes, twenty-six years.
Long Retention of Uterine Pregnancy .-- Cases of long retained intrauterine pregnancies are on record and deserve as much consideration as those that were extrauterine.

Albosius speaks of a mother carrying a child in an ossified condition in the uterus for twenty-eight years.

Cheselden speaks of a case in which a child was carried many years in the uterus, being converted into a clay-like substance, but preserving form and outline.