Monocephalus tetrapus dibrachius in a calf
2010
Shojaei, Bahador | Kheirandish, Reza | Hasanzade, Mohammad
Congenital duplications are said to be more common in cattle than in other domestic animals, and the anterior part of the body is usually affected. Dipygus or caudal duplication is a rare anomaly in the calf that is structurally related to monozygotic twins. A female Holstein calf with six legs was studied. Radiographic and computed tomographic evaluation revealed that the pelvic symphysis had not been formed, and each half of pelvic bone had been attached to a plate-like bone piece medially. Postmortem dissection on the pelvic region showed duplicated uterus and urinary bladder. Anal atresia was seen as an associated defect. To the author's best knowledge, this is the first report of bladder duplication in a dipygus calf. In addition, this is the first report of a dipygus calf with six legs from Iran.
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