Fetus-in-fetu (FIF) is a rare anomaly that occurs during the
development of twin pregnancies. One of the twin fetuses develops inside the
body of the other and loses its vitality. As a result, single baby birth takes
place. Another twin can be identified as a mass in the abdomen of the baby born
alive in the following years. Diamniotic is an anomaly that develops due to the
asymmetric division of the embryo in the zygote stage in monochorionic and
mozozygotic twin pregnancies. Fetiform teratomas (FT), a form of teratomas
originating from all three germ leaves and detected at the rate of 5% in the
retroperitoneal region, is clinically similar. It is difficult to distinguish
between the fetus-in-fetu and the fetiform teratorm.
This situation is mostly detected as a result of the
researches that are done with the complaint of babies around the age of 1 with
a mass in the abdomen. This mass can grow and compress the surrounding tissues,
for example, the urinary tract, and complaints due to these pressures may also
occur.
In FIF cases, the mass is often in the upper retroperitoneal
region of the abdomen (80%), but there are a few cases reported in the head,
scrotum and liver. The mass often contains vertebrae, extremities, skin,
intestinal and nervous structures, but rarely may include gonad, adrenal, heart
and lung, and very rarely pancreatic and spleen tissue. The mass must be
surgically removed for diagnosis and treatment.
-WHAT SHOULD BE DONE TO HAVE TWIN PREGNANCY?
-IDENTICAL TWINS
-FRATERNAL TWINS
-TRIPLET PREGNANCY
-NORMAL BIRTH OR CESAREAN IN TWIN PREGNANCIES?
-TWIN TO TWIN TRANSFUSION SYNDROME
-CAN THERE BE TWIN BABIES FROM DIFFERENT FATHERS?
-CAN ANOTHER PREGNANCY OCCUR DURING PREGNANCY?
-VANISHING TWIN SYNDROME
-FETUS IN FETU (FIF)
-CHIMERISM
