[Case report: an exceptional case of a monozygotic thoracopagus parasiticus in a German Holstein calf]

Schulze, U; Koch, R; Köchling, M; Wohlsein, P; Drögemüller, Cord; Meyer, W; Distl, O; Waibl, H (2006). [Case report: an exceptional case of a monozygotic thoracopagus parasiticus in a German Holstein calf]. DTW. Deutsche tierärztliche Wochenschrift, 113(2), pp. 72-8. Alfeld: Verlag M. & H. Schaper

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A black and white German Holstein calf displayed a complex double malformation in shape of a thoracopagus parasiticus. By means of a molecular genetic investigation the genesis of the malformation from one zygote could be demonstrated. Both vertebral columns showed a pronounced lordosis, with the vertebral column of one animal ending in a rudimentary head. Close to this rudiment two derivates of branchial arches were found. The two thoracic cavities merged into one "thorax". In the shared thoracic cavity one heart was found. In its right atrium, a cherry-sized structure was found in which heart- and vascular smooth muscles were demonstrated histologically. The aorta split shortly after its origin to provide both animals with one aorta each. The larger pair of lungs was connected with a trachea leading to the head while the smaller pair of lungs originated from a trachea deriving from the rudimentary head. The diaphragm jejunum and split afterwards. The pedigree of the affected animal showed neither inbreeding nor any other affected animal.

Item Type:

Journal Article (Original Article)


05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Institute of Genetics

UniBE Contributor:

Drögemüller, Cord




Verlag M. & H. Schaper


Factscience Import

Date Deposited:

04 Oct 2013 14:45

Last Modified:

27 Mar 2015 11:40

PubMed ID:


Web of Science ID:



https://boris.unibe.ch/id/eprint/18476 (FactScience: 619)

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