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Calvaria, View of the Dorsal Surface, Congenital Hydrocephalus, Dog.
The bone of the calvaria is thin and the fontanelles (arrows) are enlarged. The translucent membrane covering the fontanelles is periosteum.
(Courtesy Drs. J. Wright and D. Duncan, College of Veterinary Medicine, North Carolina State University; and Noah's Arkive, College of Veterinary Medicine, The University of Georgia.)
