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Gallery: Marvels on Exhibit

Autopsy Diagram, 1897

With the widows' permission, a detailed autopsy of Chang-Eng was conducted by Drs. William Pancoast and Harrison Allen in the Mütter Museum of the College of Physicians of Philadelphia from February 10-11, 1874. Shown below from the autopsy report are a contemporary sketch of the bodies and a diagram illustrating the conjoined tissues and hepatic vessels of the connecting band. Given the shared hepatic vessels, it is doubtful that a skilled 19th-century physician could have successfully separated the twins without causing the death of one twin.


Fig. 3870 Peritoneal Pouches, etc. in the Connecting Band of Chang and Eng. Diagrammatic representation of the band. From: Fisher, George Jackson. "Teratology," A Reference Handbook of the Medical Sciences. New York: William Wood, 1889. Vol. 7, p. 25. Courtesy National Library of Medicine