Fetus in fetu

Case contributed by Dr Yair Glick

Presentation

Neonate with left abdominal distension. No prenatal ultrasound done.

Patient Data

Age: Neonate
X-ray

There is fullness in the left abdomen with several calcific forms resembling bones.

Ultrasound

Two heterogeneous ovoid masses located in the left abdomen, appear retroperitoneal. Both show internal calcific components (bones) but no obvious internal flow.

Surgery

Photo

The masses were removed in their entirety.

X-ray

An X ray study reveals partially formed skeletons in both "masses", including vertebrae, ribs, and long bones.

X-ray

Normal follow-up x ray of the neonate.
Nasogastric tube well-placed.

Case Discussion

An extremely rare case of fetus in fetu (or rather, two fetuses in fetu).
The neonate recovered from surgery rapidly and uneventfully.

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