Home > Terms > English (EN) > diprosopus


A congenital defect where parts or all of the face is duplicated on the head. Unlike conjoined twinning, diprosopus is not the result of the fusion or incomplete separation of two embryos. Instead, it is caused by excess amounts of the sonic hedgehog homolog (SHH) protein. The SHH protein and its corresponding gene plays an important role in craniofacial patterning during embryonic development. In excess amounts, the SHH protein can lead to the widening and duplication of facial features.

Few animals with diprosopus survive because of brain or internal organ abnormalities that often occur with the congenital disorder. Most infants with diprosopus are stillborn. Some of the most famous include Ditto the pig, Janus cats Frank and Louie, and Indian baby girl Lali Singh.

Collect to Blossary

Member comments


wow! so interesting!

03:56, 17 June 2013

You have to log in to post to discussions.

Terms in the News

Billy Morgan

Sports; Snowboarding

The British snowboarder Billy Morgan has landed the sport’s first ever 1800 quadruple cork. The rider, who represented Great Britain in the 2014 Winter Olympics in Sochi, was in Livigno, Italy, when he achieved the man-oeuvre. It involves flipping four times, while body also spins with five complete rotations on a sideways or downward-facing axis. The trick ...

Marzieh Afkham

Broadcasting & receiving; News

Marzieh Afkham, who is the country’s first foreign ministry spokeswoman, will head a mission in east Asia, the state news agency reported. It is not clear to which country she will be posted as her appointment has yet to be announced officially. Afkham will only be the second female ambassador Iran has had. Under the last shah’s rule, Mehrangiz Dolatshahi, a ...

Weekly Packet

Language; Online services; Slang; Internet

Weekly Packet or "Paquete Semanal" as it is known in Cuba is a term used by Cubans to describe the information that is gathered from the internet outside of Cuba and saved onto hard drives to be transported into Cuba itself. Weekly Packets are then sold to Cuban's without internet access, allowing them to obtain information just days - and sometimes hours - after it ...

Asian Infrastructure Investment Bank (AIIB)

Banking; Investment banking

The Asian Infrastructure Investment Bank (AIIB) is an international financial institution established to address the need in Asia for infrastructure development. According to the Asian Development Bank, Asia needs $800 billion each year for roads, ports, power plants or other infrastructure projects before 2020. Originally proposed by China in 2013, a signing ...


Online services; Internet

Spartan is the codename given to the new Microsoft Windows 10 browser that will replace Microsoft Windows Internet Explorer. The new browser will be built from the ground up and disregard any code from the IE platform. It has a new rendering engine that is built to be compatible with how the web is written today. The name Spartan is named after the ...

Featured Terms

Jessica Lambert
  • 0


  • 7


  • 6


Industry/Domain: Fashion Category: Brands & labels


Trapstar is a London based fashion brand where it's creators started life printing t-shirts with there own designs to be worn for their own ...

Featured blossaries

Facial hair style for men

Category: Fashion   2 6 Terms

Material Engineering

Category: Engineering   1 20 Terms