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I present, herewith, a double monster, known as a Thoracopagus. It was procured by Dr. E. C. C. Winter, who placed it in my hands for a few days. The mother was a young negro, and this was her first pregnancy. She stated that so far as she knew, there had been no deformity nor even twins in the family history of her husband or herself.
There is but one umbilical cord; for which reason the monster has been also called omphalopagus. There are two distinct heads and necks, and as is usually the case, one is smaller than the other. Indeed some writers affirm that one of a double monster is always the smaller. The bodies, otherwise than the heads of this specimen, do not show any marked difference in size. On one side the limbs are separate and perfect, on the other the arms coalesce, though from a
LAMB DS. THORACOPAGUS. Read before the Medical Society of the District of Columbia, June 13, 1888. JAMA. 1889;XII(4):118–119. doi:10.1001/jama.1889.02400810010001c
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