Fetus Papyraceus
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《新英格兰医药杂志》
A 19-year-old woman (gravida 1, para 0) delivered a healthy, 3270-g female infant at 38 weeks' gestation. The pregnancy had been uncomplicated except for the death of a twin, which was noted during an ultrasound examination at 23 weeks. The placenta was delivered spontaneously as a single disk with a fetus papyraceus (or fetus compressus) attached to the membranes. The fetus papyraceus (Panel A) had a crown–rump length of 7.5 cm, a measurement consistent with death at 13 weeks, and it contained visible ribs (black arrow), an eye (black arrowhead), a foot (white arrow), and a helical, trivascular umbilical cord (white arrowhead). A radiograph of this fetus (Panel B) showed nearly complete skeletal development. In multiple gestations, the intrauterine death of one fetus and conversion to a singleton pregnancy occur frequently. The dead twin can be compressed and incorporated into the placenta of the surviving twin and, if large enough, can be visible on sonography or at delivery.
Gary Sutkin, M.D.
Viviane Mamlok, M.D.
Texas Tech University Health Sciences Center
Lubbock, TX 79430
Gary Sutkin, M.D.
Viviane Mamlok, M.D.
Texas Tech University Health Sciences Center
Lubbock, TX 79430