Congenital secundum atrial septal defect (ASD) and membranous ventricular septal defect (VSD) were diagnosed in a 1-day-old Holstein-Friesian calf necropsied in the Department of Pathology of Mehmet Akif Ersoy University. The secundum atrial septal defect was 32.9 × 23.1 mm in width and was elliptical. The membranous ventricular septal defect was 25.3 × 18.5 mm in width and was round to oval in shape. Both atrial and ventricular septal defects were stained with hematoxylin-eosin and Van Gieson's stain. Histopathological examination showed that the defects mainly consisted of numerous muscle cells and, in some areas, dense fibrous connective tissue.
HALIGÜR, AYŞE; HALIGÜR, MEHMET; and ÖZMEN, ÖZLEM
"Congenital secundum atrial septal defect and membranous ventricular septal defect in a newborn Holstein-Friesian calf,"
Turkish Journal of Veterinary & Animal Sciences: Vol. 35:
5, Article 12.
Available at: https://journals.tubitak.gov.tr/veterinary/vol35/iss5/12