2021
DOI: 10.1111/jvim.16123
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Persistent fontanelles in Chihuahuas. Part II: Association with craniocervical junction abnormalities, syringomyelia, and ventricular volume

Abstract: Background: Persistent fontanelles (PFs) are, in Chihuahuas, almost ubiquitous. Furthermore, Chihuahuas are predisposed to other craniomorphological abnormalities, including syringomyelia (SM), ventriculomegaly, and craniocervical junction (CCJ) overcrowding resulting in neural tissue deviation. It is, however, undetermined if PFs are more common in dogs with these structural abnormalities, and their etiology is unknown. Hypothesis/Objectives: Persistent fontanelles are more numerous and larger in Chihuahuas w… Show more

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Cited by 7 publications
(2 citation statements)
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“…Previous MRI might help to find the proper localization for shunt insertion and identification of some useful landmarks, e.g., temporal muscle lining, occipital protuberance, coronal sutures. Chihuahuas are often presented with internal hydrocephalus, but this breed is also common for large open fontanells and unossified sutures among the cranial vault ( 34 , 35 ). This complicates proper shunt placement in these animals and might even make it impossible in rare cases.…”
Section: Reviewmentioning
confidence: 99%
“…Previous MRI might help to find the proper localization for shunt insertion and identification of some useful landmarks, e.g., temporal muscle lining, occipital protuberance, coronal sutures. Chihuahuas are often presented with internal hydrocephalus, but this breed is also common for large open fontanells and unossified sutures among the cranial vault ( 34 , 35 ). This complicates proper shunt placement in these animals and might even make it impossible in rare cases.…”
Section: Reviewmentioning
confidence: 99%
“…A CKCS can be unaffected at a young age but affected at an older age ( 20 , 21 ). CM/SM is not unique for the CKCS and has been reported to occur in several other brachycephalic toy-breeds, such as Chihuahua ( 28 ), Griffon ( 29 ), Affenpinscher ( 30 ), and Pomeranian ( 31 ).…”
Section: Introductionmentioning
confidence: 99%