Intracranial fetus ‐in‐fetu with numerous fully developed organs
This study prenatally demonstrated triplet FIFs at 31 weeks within amniotic‐like sac in the fetal skull, consisting of multiple well‐defined organs. The FIF attached to the host twin via body stalk containing a single main feeding artery and vein, representing umbilical vessels. Surgical removal was performed at the age of two months. Pathological examination showed the triplet FIF, consisting of numerous well‐developed organs (musculocutaneous‐skeletal, nervous, respiratory, gastrointestinal systems etc.), with soft tissue/skin coverings, but no vertebral body was seen. Molecular genetic analysis revealed identical genetic mapping among the three FIFs and the host. This case provides strong evidence against Willis's hypothesis but supports Spencer's theory of abnormal twinning.
Source: Journal of Clinical Ultrasound - Category: Radiology Authors: Kuntharee Traisrisilp, Kasemsri Srisupundit, Songkiet Suwansirikul, Thunya Norasetthada, Shanika Kosarat, Theera Tongsong Tags: CASE REPORT Source Type: research
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