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Related Experiment Video

Updated: May 10, 2026

A Mouse Model of in Utero Transplantation

A Mouse Model of in Utero Transplantation

Published on: January 27, 2011

Foetus-in-Fetu.

M I Sharifah¹, M Noryati, C D Che Zubaidah

¹UKM Medical Centre, Medical Faculty, Radiology Department, Jalan Yaacob Latif, Bandar Tun Razak, 56000 Kuala Lumpur, Malaysia. shmajedah@yahoo.com.

The Medical Journal of Malaysia

|June 13, 2013

Summary

This summary is machine-generated.

Foetus-in-fetu is a rare congenital anomaly where a calcified mass resembling a fetus is found within an infant. This case report details the diagnosis and confirmation of this parasitic twin in a newborn.

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Area of Science:

Medical Imaging
Developmental Biology
Pediatric Surgery

Background:

Foetus-in-fetu is an extremely rare congenital malformation.
It involves a calcified mass within the abdomen of a host newborn or infant.
This condition represents a form of asymmetric conjoined twinning.

Observation:

A newborn presented with an abdominal mass detected via radiography and ultrasonography.
Imaging findings were suggestive of a foetus-in-fetu.
Macroscopic examination revealed a soft tissue mass with features of a fetus.

Findings:

The mass was covered in intact skin.
It possessed two malformed lower limbs with a rudimentary digit.
One malformed upper limb was also identified.

Implications:

This case highlights the importance of advanced imaging in diagnosing rare congenital anomalies.
Early diagnosis and surgical intervention are crucial for infant outcomes.
Understanding foetus-in-fetu aids in comprehending developmental anomalies in twins.