Perineal choristoma and atresia ani in 2 female Holstein Friesian calves

Veterinary Pathology
D BinantiP Riccaboni

Abstract

Atresia ani, a congenital anomaly of the anus, can be associated with other types of malformation. Two female Holstein Friesian calves had imperforate anus, rectovaginal fistula, and perineal choristomas. In one case, the choristoma was composed of mature adipose and fibrous tissue with nephrogenic rests. In the other calf, the choristoma consisted of fragments of trabecular bone coated by cartilage and containing marrow, mixed with mature adipose and fibrous tissue, striated muscle fibers, nerves, and vessels. This combination of malformations resembles the association of anorectal malformations and perineal masses in children.

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Citations

Feb 18, 2017·Animals : an Open Access Journal From MDPI·Sara AlbarellaVincenzo Peretti
Nov 8, 2016·The Journal of Veterinary Medical Science·Su-Hyung LeeDae-Yong Kim
Apr 26, 2021·Journal of Comparative Pathology·Joana Gp JacintoCinzia Benazzi

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