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. 2017 Feb 17:805–907.e1. doi: 10.1016/B978-0-323-35775-3.00014-X

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Copyright © 2017 Elsevier Inc. All rights reserved.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Figure 14-39 — Hydrocephalus, Brain, Dog.

A, Midsagittal section of the head, third ventricle. Note the dilated third and lateral ventricles and the absence of most of the septum pellucidum between the left and right lateral ventricles. B, Junction between parietal and occipital lobes, level of thalamus. Bilateral dilation of lateral ventricles (LV) dorsally, and ventrolaterally. The fornix has separated and lies on the flattened floor of the ventricle. Note that the third ventricle (TV) and junctional area between the third ventricle and mesencephalic aqueduct (TV-MA) are not enlarged and are possibly even reduced in size, suggesting that the obstruction may be at, or rostral to, this plane of section.

(A courtesy Dr. M.D. McGavin, College of Veterinary Medicine, University of Tennessee. B courtesy Dr. R. Storts, College of Veterinary Medicine, Texas A&M University.)