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Case Reports
. 2016 Spring;7(2):177-9.
Epub 2016 Jun 15.

A case of asymmetrical monocephalus dipygus (tetrapus dibrachius) in a male Holstein calf in Iran

Behrokh Marzban Abbasabadi  1 , Aliakbar Ahmadzadeh  2 , Shahab Ramezanpour  3 , Amir Reza Hajati Ziabari  4
Affiliations
Case Reports

A case of asymmetrical monocephalus dipygus (tetrapus dibrachius) in a male Holstein calf in Iran

Behrokh Marzban Abbasabadi et al. Vet Res Forum. 2016 Spring.

Abstract

Dipygus is a teratological fetus with a double pelvis, genitals, and extremities. Congenital duplications in cattle are rare. Caudal duplication is more common in sheep and pigs while cranial duplications seem to be predominant in cattle. Asymmetric or parasitic conjoined twins consisting of an incomplete twin (parasite) attached to the body of a fully-developed twin (autosite). This report deals with a male Holstein calf with two extra limbs, in the pelvic region which were directed ventrally between the two normal hind limbs. The extra limbs were completely developed in one side and in other side just a bony mass were observed. So classification has been made as asymmetrical attached twins. The genital system was not affected and just one extra kidney-like structure was found. To the authors' best knowledge, this is the first report of asymmetrical monocephalus dipygus (tetrapus dibrachius) in a male Holstein calf in Iran.

Keywords: Conjoined twins; Holstein calf; Monocephalus dipygus; Tetrapus dibrachius.

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Figures

Fig. 1
Fig. 1
Extra limbs in the affected Holstein calf.
Fig. 2.
Fig. 2.
Patella (arrow) was just like a prominence proximal to the abnormal distal end of femur (star
See this image and copyright information in PMC

References

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