Twin Reversed Arterial Perfusion

Acardiac twinning or Twin Reversed Arterial Perfusion (TRAP):hotsprings:

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:large_blue_diamond:One twin normal other twin with absent heart and other anomalies ( in MONOZYGOTIC incidence 1 in 35,000)

:large_blue_diamond:The mortality in RECIPIENT ACARDIAC twin is 100% whereas the NORMAL DONOR twin is also at an increased risk of morbidity and mortality.

:large_blue_diamond:There are different types of acardiac twins with different presentation like
:small_orange_diamond:Acardius Acephalus,
:small_orange_diamond:Acardius Myelocephalus
:small_orange_diamond:Acardius Amorphous .

Today I’ll share a case study of ACARDIUS AMORPHOUS twin

Fetus amorphous acardious is a rare fetal malformation, lacking a functional heart and bearing NO RESEMBLANCE to HUMAN embryos. (As shown in image)
The main differential diagnosis is with placental teratoma and is based on the degree of skeletal organization and umbilical cord formation.
A 27-year old woman delivered a healthy newborn at 37 weeks’ gestation.
An amorphous mass, covered with healthy looking skin, was connected to the placenta with a short pendicle.
X-ray examination of the mass revealed the presence of vertebral column associated with ribs and pelvic bones.
Histopathologic examination demonstrated the presence of spinal tube inside the vertebral column.
Microscopy of the pedicle was consistent with umbilical cord. Various other tissues were also discovered, such as adipose tissue, gastric and large