A monster having two heads with a varying degree of duplication of the rest of the body is termed dicephalus. The etiology of such monsters is unknown. De Lee1 states that they come from one ovum and are developed from one germinal vesicle. Entrance of more than one spermatozoid is not the cause, because eggs so impregnated usually die. None of such cases have delivered spontaneously, and only a few have lived more than a short time. In vertex presentations, after failure of forceps delivery, version and extraction have been employed and in four cases decapitation, and then version. The breech presentations have been delivered by maniplation and traction. Beach2 recently reported a case of dicephalus with a review of some of the cases.
REPORT OF CASE
The mother, Mrs. H., aged 20, a secundipara, was admitted to Rockford Hospital at 8 p. m., July 10, 1921. The
Cibelius CA. DICEPHALUS WITH TWO COMPLETE SPINES. JAMA. 1922;78(7):504–505. doi:10.1001/jama.1922.26410600001013
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