Ep. 35: Fetus in Fetu


“That’s just the twin I absorbed in the womb!” An old joke that has a basis in horrifying fact. In this episode your hosts take you down the very dark rabbit hole of Fetus in Fetu birth defects. From the bewildering, gross mish-mash of teratomas, to legitimate cases of absorbed twins and triplets, to the saddening stories of babies born with two heads or two faces, Jack and J. J. cover it all.


Reading from “Beyond the Zonules of Zinn” by David Bainbridge. Harvard University Press. pp. 59-60. 2008.

Fetus in Fetu via Wikipedia

Understanding Fetus in Fetu: The Phenomenon of the Parasitic Twin” from Twin-Pregnancy-and-Beyond.com

Extragonadal Teratomas“by  F. Gonzalez-Crussi. Armed Forces Institute of Pathology . Wahington D.C.. viii, pp. 204. 1982.


Teratoma via Wikipedia

Tyrone Jones via Wikipedia

Maki: Jones returns to say goodbye” by Allan Maki. The Globe and Mail. Winnipeg. Last Updated: 7 April 2009.

Baby born with ‘foot in brain’” (no byline) from BBC News.com. 19 December 2008.

Fetus in Fetu

Fetus in Fetu: A Rare Presentation in an Adult Female” by Akhtar Murtaza, et al.  Oman Medical Journal.  OMJ. 25, (2010); doi:10.5001/omj.2010.43.

Foetus in Foetu (The Boy who Gave Birth to his Twin)[Bodyshock]” posted by daiflu. http://www.dailymotion.com. Originally posted: 17 April 2014.

10 People with Shocking and Extreme Deformities” by unknown. The Daily Trends. 2013.

Man With Twin Living Inside Him — A Medical Mystery Classic” by ABC News. abcnews.go.com. 23 August 2006.

Surgeons remove two fetuses from infant” by Associated Press. http://www.nbcnews.com. 28 March 2006.

From observation to aetiology: a case report of a twin fetus-in-fetu and a revisit of the known rarity” by Kristine KY Pang, et al., Hong Kong Med J 2015 Feb;21(1):80–3.

Final Diagnosis — Intratesticular Fetus in Fetu” by Diana Thomas, MD, Phd, and Miguel Reyes-Múgica, MD. Publication and Date unavailable.

Parasitic Twins and Diprosopus

Parasitic Twin via Wikipedia

Craniopagus Parasiticus via Wikipedia

The Two-Headed Boy of Bengal” by J. Tithonus Penaud. http://www.thehumanmarvels.com. 14 April 2006.

Parasitic Twins: Edward Mordrake and the Two-Headed Boy of Bengal” from Locklip.com. 2014-2015.

Edward Mordrake – A Mystery Solved” by Alex Boese. The Museum of Hoaxes. hoaxes.org. 24 April 2015.

Manar Maged” by David Mikkelson. snopes.com. Last Updated 14 June 2014.

By popular request! – Islaam and Manar Maged – again” by I will be right here waiting for You… youtube.com. Originally uploaded: 30 May 2010.

Egyptian surgeons separate conjoined twins linked at head” by AP Wire Service. Tulsa World. Originally posted: 20February 2005.

Diprosopus via Wikipedia

SHH (Sonic Hedgehog) via Genetics Home Reference. Published 12 April 2016.

Hope and Faith Howie: Conjoined Twins’ Grave ‘Desecrated’ With Cherished Items Dumped in Bins” by Sam Adams. http://www.mirror.co.uk. 3 April 2015.

Additional Resources:

Jin” by Motoka Murakami. 2000.

Fetus in Fetu in Fiction via Wikipedia

Music used in this podcast:

Danger – [Dark Ambient] by myuu

Only Questions Remain by NegaNote


whisper (CXLVIII) / CC BY 4.0


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