Finally, when one looks at the twins' placental portions in TTTS cases with a microscope, the donor portions have blood vessels that are fewer in number, compared to the recipient who has more dilated and congested blood vessels. Sadly, some MC twins may have shares of the common placenta that are unable to sustain their lives in the womb to a point where they can survive if delivered. In such cases additional placenta cannot be created. When this twin passes away, the other twin is at risk for death or birth defects because of the connecting vessels. In addition to TTTS, the placental abnormalities can cause the early loss of one twin, as well as developmental birth defects in one twin.
Organ abnormalities in a human parabiotic syndrome.
Die Gef,,ssverbindungen der Placentarkreisl,,ufe eineiiger Zwillinge, ihre Entwicklung und ihre Folgen. Highlight a word to use our Active Glossary .