[SavageGlow]

Fetus in fetu is a rare developmental abnormality in which a mass of tissue resembling a fetus forms inside the body of its twin.

There are two hypotheses for the origin of a "fetus in fetu". One hypothesis is that the mass begins as a normal fetus but becomes enveloped inside its twin. The other hypothesis is that the mass is a highly developed teratoma.

The anomaly was first defined in early nineteenth century by Meckel. Despite its prevalence among infants and children, there have been reports of cases in which the anomaly had remained asymptomatic until later ages. This rare congenital anomaly was reported around 100 times since its first definition in the nineteenth century.

[Elizabeth76]

Now if only she could control that arm, she would never need a back scratcher.

[kellyhound]

It is a malformed parasitic monozygotic diamniotic twin that is found inside the body of the living child or adult. The mass is located in the retroperitoneum in 80% of cases. It also occurs in other locations, such as skull, sacrum, scrotum and mouth. However, it has never been reported in the back.

This 11-year-old girl was hospitalised because of a large mass in her back. She was the second child in her family where there was neither twin pregnancy nor fetal malformation.

The large mass has two parts where the upper part consists of a mammary gland and an attached upper limb including a scapular, humerus and two fingers, and where the lower part contains a thick-walled sac which endlessly secreted mucosal fluid. There was not a clear cleavage plane between the autosite and the parasite.

The anteroposterior spine radiograph showed congenital scoliosis anomalies, and the CT scan showed diastematorrhachia and diastematomyelia in the thoracolumbar region.

Based on above-mentioned physical examination and imaging findings, a diagnosis of fetus in fetu was thus made preoperatively.

A surgical excision of the fetus in fetu was performed successfully.

Histological sections of the excised sac specimen showed stratifyed squamous epithelium and digestive tract mucosa.

Fetus in fetu is a very rare condition, with a reported incidence of one in 5000 000 live births.

[Mr.NoCredit]

Amazing!

[HIGHTECHDUDE]

If all girls could just grow a breast on their back, it might be the impetus to bring back slow dancing...

[Tadhgín]

The CLAWWWWW

[LuckiiDevil21]

Reminds me of that movie Malignant. I love that movie. It is such a good movie if you haven't seen it you should check it out. And then you'll see why I say this reminds me of it.

[profezzorx]

I hope he'll have the common courtesy of giving him/her a reach around..

[KMPALMER]