Fetus in fetu

Case contributed by Dr Zaidah Mohd Ismail

Presentation

Abdominal mass since birth associated with sudden onset of severe abdominal pain.

Patient Data

Age: 15 years
Gender: Male
CT

An intraperitoneal malformed fetus in a sac. Malformed skull vault, limbs, teeth and vertebrae are visualized.

Case Discussion

Total removal of the malformed fetus was performed and confirmed to be fetus in fetu.

Fetus-in-fetu is a rare benign condition in which a non viable fetus is found in the body of its twin.

It is extremely rare with an incidence of 1:500,000 births. It is a type of monozygotic diamniotic twin.

Differential diagnosis is organized teratoma. Total excision of this malformed fetus is a definite cure.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.