Fetus-in-fetu: Parasite or Neoplasm?

@article{Saito2007FetusinfetuPO,
  title={Fetus-in-fetu: Parasite or Neoplasm?},
  author={Keisuke Saito and Yusuke Katsumata and T. Hirabuki and Keisuke Kato and M. Yamanaka},
  journal={Fetal Diagnosis and Therapy},
  year={2007},
  volume={22},
  pages={383 - 388}
}
Introduction: Fetus-in-fetu is a rare congenital fetiform mass whose etiology is still controversial. We report two cases of fetus-in-fetu. Case 1: A fetal retroperitoneal cystic tumor including two masses was detected by ultrasonography at 26 gestational weeks. The masses showed distinctive structures resembling a vertebral axis and were prenatally diagnosed as fetus-in-fetu. A resected specimen revealed two fetiform masses. Case 2: An intracranial tumor with hydrocephalus was detected by… Expand
5 Citations
Foetus-in-Fetu.
TLDR
A case of a newborn in whom abdominal radiograph and ultrasonography revealed a mass in which the contents favour a foetus-in-fetu, attached to the membranous sac. Expand
Intracranial fetus‐in‐fetu with numerous fully developed organs
TLDR
This case provides strong evidence against Willis's hypothesis but supports Spencer's theory of abnormal twinning. Expand
Metastatic synovial sarcoma, masquerading a carcinoma from a tonsillar primary: A rare case presentation
TLDR
This case of immature retroperitoneal teratoma grade 3 is reported for its unique presentation as fetiform mass with immature neuroectodermal elements. Expand
INTRAHEPATIC FOETUS IN FOETU IN ADULT MALE: A CASE REPORT AND REVIEW OF THE LITERATURE
TLDR
Surgical excision under general anaesthesia and macroscopic and microscopic analysis accompanied by review of literature confirmed the mass had features consistent with a foetus in foetu, initially diagnosed as intrahepatic teratoma or partially healed hydatid cyst complicated by gas forming organism. Expand
Origin, formation mechanism and prenatal diagnosis of the intracranial Fetus-in-fetu. Review of the literature
TLDR
The Origin, formation mechanism and prenatal diagnosis of the intracranial Fetus-in-fetu and review of the literature are reviewed. Expand

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