It appears that he had read with care a report by Fatti of an operation on the scrotum of a child which had increased in size as the child grew, and was found to contain the ribs, the vertebral column, the lower extremities as far as the knees, and the two orbits of a fetus; and also an account of a similar operation performed by Wendt of Breslau on a Silesian boy of seven.

The left testicle in this case was so swollen that it hung almost to the knee, and the fetal remains removed weighed seven ounces.
Sulikowski relates an instance of congenital fetation in the umbilicus of a girl of fourteen, who recovered after the removal of the anomaly.
Aretaeos described to the members of the medical fraternity in Athens the case of a woman of twenty-two, who bore two children after a seven months' pregnancy.

One was very rudimentary and only 21 inches long, and the other had an enormous head resembling a case of hydrocephalus.
On opening the head of the second fetus, another, three inches long, was found in the medulla oblongata, and in the cranial cavity with it were two additional fetuses, neither of which was perfectly formed.
Broca speaks of a fetal cyst being passed in the urine of a man of sixty-one; the cyst contained remnants of hair, bone, and cartilage.
Atlee submits quite a remarkable case of congenital ventral gestation, the subject being a girl of six, who recovered after the discharge of the fetal mass from the abdomen.

McIntyre speaks of a child of eleven, playing about and feeling well, but whose abdomen progressively increased in size 1 1/2 inches each day.

After ten days there was a large fluctuating mass on the right side; the abdomen was opened and the mass enucleated; it was found to contain a fetal mass weighing nearly five pounds, and in addition ten pounds of fluid were removed.
The child made an early recovery.