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Fetus-in-Fetu: Mimicking as Teratoma on Antenatal Ultrasound

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Abstract

Fetus-in-fetu is a rare and unusual condition. In this condition, a malformed parastitc fetal twin develops inside the body of another fetus, most commonly in the abdominal cavity. We present a case which was thought to be a teratoma on antenatal ultrasound. However, on subsequent postnatal imaging and surgery, it was proved to be fetus-in-fetu.

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Authors and Affiliations

  1. Sutlej Diagnostic center, Nangal, Punjab, India

    Harpreet Kehal, Satbir Billing & Bal Krishan Sharma

  2. Punjab Institute of Medical Sciences, Jalandhar, Punjab, India

    Puneet Mittal

Authors
  1. Harpreet Kehal
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  2. Satbir Billing
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  3. Bal Krishan Sharma
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  4. Puneet Mittal
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Corresponding author

Correspondence to Puneet Mittal.

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Key Messages

Fetus-in-fetu is a very rare condition that is difficult to differentiate from teratoma on imaging. CT can be helpful in the diagnosis by demonstrating the vertebral column which is not seen in teratoma.

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Kehal, H., Billing, S., Sharma, B.K. et al. Fetus-in-Fetu: Mimicking as Teratoma on Antenatal Ultrasound. Indian J Surg 75 (Suppl 1), 412–414 (2013). https://doi.org/10.1007/s12262-012-0745-8

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  • DOI: https://doi.org/10.1007/s12262-012-0745-8

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